Our 30-Day Guarantee

If it's not right for you, you don't pay for it. Full stop.

Every product on this site is backed by a 30-day, full-refund, keep-the-bottle guarantee. If you're not satisfied — for any reason at all — email us within 30 days of receiving your order and we'll refund the full purchase price to your original payment method. You don't need to ship anything back. You don't need to fill out a form. You don't need to argue your case. You don't need to prove the product "didn't work." You don't need to send before-and-after photos, lab panels, journals, or affidavits. You ask, we refund.

This page exists for a single reason: removing the financial risk of trying a longevity protocol so the only question left is "is this the right intervention for my biology, on my timeline." That's a hard enough question on its own. The "what if I'm wasting money" question has a one-line answer — you aren't, because the money comes back if you ask.

What follows is the guarantee in detail: how to claim it, how the refund moves through your bank, what is and isn't covered, how it interacts with bundles and gifts and international orders and subscriptions and chargebacks, the science behind why we still ask you to give the formulas a real trial before deciding, how our policy compares to industry norms, and the dozens of edge cases real customers have raised over the catalog's life. If you only have 60 seconds, the next section covers everything that matters operationally; the rest is for the situations that need it.

The 60-second version

  • What you get: A full refund of your purchase price (product subtotal + tax) on every first-time order, for any reason, within 30 days of delivery — plus original outbound shipping fees on your first guarantee claim. The total refund equals what you paid us.
  • What you do: Email support@truehealthprotocol.health from the address you used to place the order, with your order number (format #1XXX) in the subject line. That's the entire process. No forms. No phone tree. No required reason.
  • What you don't do: You don't ship the bottle back. You don't fill out a return form. You don't wait for our approval to use the product. You don't explain why. You don't pay restocking fees. You don't pay return shipping. You don't lose store credit if the refund clears past the original promo window.
  • How fast: We acknowledge your email within 1 business day, process the refund within 2 business days, and your bank typically posts the credit 5–7 business days after that. Worst-case end-to-end: ~10 business days from your email to seeing the credit on your statement; typical case is 3–5.
  • The clock: 30 days starts at delivery (the date your tracking shows "Delivered"), not at order date. If your package took two weeks to arrive, you still get the full 30 days from delivery to evaluate. International transit delays do not eat into your evaluation window.
  • Original shipping fees: We refund those too on your first guarantee claim, so the total refund equals what you paid us. We do not ask you to ship the bottle back at your expense.
  • Repeat customers: The guarantee applies to first-time purchases of any specific product. After you've reordered the same product once, we ask that you contact us first if there's a problem instead of auto-refunding — almost always we can solve it (wrong dose, wrong stack, formulation question, taking it on an empty stomach when it should be with food) without a refund being the right answer. Repeat-customer guarantee claims are still honored if the resolution path doesn't work; we just want a chance to fix the underlying issue before refunding.
  • The crosslinks: The full Refund Policy and Shipping Policy are linked at the bottom of every page; this guarantee page expands the operational detail that lives in those policy pages with edge-case examples and customer-facing language.

That's the whole policy. The rest of this page is detail for the situations that need it. Skip to whatever applies — every header is anchored, the table of contents below is clickable, and the page is designed to read top-to-bottom or jump-in.

Page contents

Why we built the guarantee this way

We sell longevity supplements — formulas designed to act on biological aging pathways like NAD+ decline, sirtuin signaling, mitochondrial biogenesis and mitophagy, senescent-cell clearance, glutathione regeneration, methylation balance, and AMPK/mTOR nutrient-sensing. The honest truth about this category is that the body's response timeline is measured in weeks, not minutes. NMN raises NAD+ within hours (Yoshino 2021 Science; Brakedal 2022 Cell Metabolism NADPARK), but its downstream effects on energy, cognition, recovery, and biomarkers typically become noticeable around weeks 2–6 and continue to compound through month 3. Resveratrol's sirtuin activation, Calcium Alpha-Ketoglutarate's mitochondrial uplift and epigenetic-age effects (Asadi Shahmirzadi 2020 Cell Metabolism; the TruDiagnostic 2021 8-year reduction case series), Quercetin and Fisetin's senolytic clearance (Yousefzadeh 2018 EBioMedicine; the Mayo Clinic AFFIRM trials NCT03675724/NCT04210986), GlyNAC's glutathione restoration (Sekhar 2021 Clinical and Translational Medicine) — these all unfold over 4–12 weeks of consistent dosing. A 7-day "I tried it and didn't feel anything" assessment is, mechanistically, before the formula has finished doing the upstream chemistry the literature is measuring.

That mismatch — between when supplements actually act on the body and when most return windows expire — is why we built the guarantee around 30 days from delivery, full refund, keep the bottle. You get a full month past arrival to commit to a real trial. We get a customer who finishes the bottle (because there's no penalty for asking for a refund partway through) and therefore actually tests the formula long enough for the underlying biology to respond. The keep-the-bottle structure is deliberate: forcing you to package a half-used supplement, drive to the post office, and pay return shipping is friction that pushes everyone toward "I'll just eat the cost" — which means people stop the protocol mid-trial and never get the data point they were paying for.

The other reason we built the guarantee this way is the truth about variance. NAD+ precursor response varies by baseline NAD level, age, sex, body composition, and CD38 activity. Sirtuin activator response depends on NAD availability (which is why NMN + Resveratrol is a stack rather than two independent products). Senolytic response depends on senescent-cell burden (which scales with age and exposure history). Methylation support depends on baseline homocysteine, MTHFR genotype, and dietary methyl-donor intake. We can't promise that every formula will produce a felt response in every body in 30 days. What we can promise is that you don't pay for the experiment if it doesn't pay you back.

The third reason is structural. The supplement category has earned, fairly, a reputation for hostile return policies — restocking fees, return-shipping cost on the customer, "unopened only" exclusions that make the guarantee meaningless, hidden 14-day windows, store credit instead of cash, requirements to call a phone number that has no human on the other end. Every one of those mechanisms exists to make refunds attritionally expensive. We are deliberately the opposite of that. Our internal cost of refunding a customer who didn't see results is materially smaller than our cost of acquiring a new customer who is afraid to try because they don't trust the category, so the math overwhelmingly favors generosity. You should think of the guarantee as us putting our money where our mouth is on the formulations — if the trials we cite on every product page (we link the trials, by NCT number where applicable, on every product description) translate to felt outcomes for you, you keep the product. If they don't, we pay for the experiment.

We also think it's the right thing to do. People who try longevity supplements are usually doing so during a window of life — early signs of aging they don't like, recovering from illness, watching a parent decline, hitting a biomarker they want to improve, training for something physical, building a stack to support fertility — where the financial decision is bound up with hope. Selling hope and then making refunds painful is not a business we want to run.

How to claim — step by step

Step 1: Send an email

Email support@truehealthprotocol.health from the address you used to place the order. Put your order number in the subject line — it's the four-digit number starting with # at the top of your order confirmation email and also on the packing slip inside the box. Format: Subject: Refund request — order #1XXX. The body of the email can say literally anything; "I'd like to use the guarantee" is enough. You don't need to give a reason. If you'd like to share why (so we can improve the formula or the protocol guidance — every refund email is read by a human who works on the catalog), we welcome it, but it isn't required.

Step 2: We confirm

You'll get an acknowledgment within 1 business day (usually within a few hours during US daytime) confirming we've received the request and have the order on file. If anything is unclear (e.g., we can't find the order under that email, or the order was placed against a different email like a parent placing on a child's behalf), we'll write back asking for one piece of clarifying information. Otherwise the next email you get from us is the refund confirmation.

Step 3: The refund processes

We process the refund through Shopify Payments back to your original payment method within 2 business days of the request. You'll get an automated Shopify email with the refund amount and transaction ID; you can also see the refunded order in your order history if you have an account. The refund hits your bank's processing queue at that moment.

Step 4: You're done

Your bank typically posts the credit to your account 5–7 business days after we process. Some banks are faster (1–2 days for major US issuers); some are slower (up to 10 business days for certain prepaid cards or international issuers). If 10 business days have passed since you got the Shopify refund email and you don't see it, write us back on the same email thread and we'll send you the transaction ID and original-merchant reference number to help your bank track it. We've never had a refund actually fail to post — every long delay we've seen has been a bank-side processing issue that resolves once the customer escalates internally with their card issuer.

What you do not do, ever

  • You do not ship the bottle back. The bottle is yours. Use it, throw it out, give it to a friend — your call.
  • You do not fill out a return-merchandise authorization (RMA). We don't have one.
  • You do not get charged a restocking fee. They don't exist on our store.
  • You do not pay return shipping. Nothing is being shipped back.
  • You do not get pushed onto a chat-bot ticketing system that requires you to retype the same information across 3 forms. You email a human.
  • You do not get talked out of it. The human reading the email will not "save the sale" — that's not the role. If you ask for a refund, the refund is processed.

What's covered

What's not covered

The list of exclusions is short and we want to be specific about each one rather than burying them in legalese.

  • Orders past the 30-day window. If you contact us 45 days after delivery, the standard policy is no longer in effect — but write us anyway. We have made exceptions for medical emergencies, family deaths in the buyer's household, hospitalization, and a handful of other "the customer literally couldn't write us during the window" situations. We can't guarantee an exception, but we read every email and apply judgment.
  • Repeat-purchase claims without a conversation. If this is your fourth bottle of NMN and you'd like a refund, we'll process it — but we want a 60-second conversation first to understand whether something changed (a new stack interaction, dose mismatch, formulation switch, lifestyle change) so we can either fix the underlying issue or note the formulation feedback for our manufacturing partner. We don't decline repeat-customer guarantee claims; we ask for the conversation before processing.
  • Tampered or counterfeit product. If you bought a "True Health Protocol" product on a third-party marketplace (Amazon, eBay, an Instagram reseller) rather than on this store, it isn't ours and we can't refund it. We do not authorize third-party resellers. Every legitimate True Health Protocol product carries our packaging and ships from our fulfillment partner with a packing slip that has our domain on it. If you're unsure whether your bottle is legitimate, email us a photo of the label and we'll confirm.
  • Replicas of supplements you bought elsewhere. The guarantee doesn't extend to non-True-Health-Protocol products. Sounds obvious, but we get the question quarterly: "I bought NMN at Costco, it didn't work, can you refund it?" No.
  • Damage from misuse. Products stored in a hot car for a week and arrived melted, products opened and refilled with something else, products stored in a humid bathroom and gone moldy — those don't qualify for damaged-in-transit treatment. If the carrier delivered the package in good condition and damage occurred after, we can't re-ship at our cost. The 30-day satisfaction guarantee still covers the refund itself; we just can't both refund and re-ship.
  • Consequential damages. The refund is the purchase price you paid us. We can't refund downstream costs (e.g., "I bought NMN, didn't see results, paid for a blood test that confirmed I didn't see results, refund the blood test"). The product price is the limit of the guarantee.
  • Bottles given away or resold. If you bought 10 bottles and gave 8 to friends, the guarantee is on the order — refund process applies once. We're not going to ask you to itemize who got which bottle.
  • Chargebacks-without-asking. If you initiate a chargeback through your bank without writing us first, we will fight the chargeback (because we have shipping records and delivery confirmation), and the chargeback typically takes 30–60 days to resolve. Asking us first via email is faster, friendlier, and produces the same financial outcome — see the chargeback section.

Refund timing — a more detailed breakdown

This section is for the customer who wants to know precisely when the money will land. The honest answer is "it depends on your bank," but the patterns are stable enough that we can give you ranges by payment method.

Credit cards (Visa, Mastercard, Amex, Discover)

Major US issuers (Chase, Citi, Capital One, Wells Fargo, Bank of America, Amex, Discover) post refunds 1–3 business days after we process. Smaller banks and credit unions can take 5–7. The refund will appear on your statement as a credit transaction with the same merchant descriptor as the original charge ("TRUEHEALTHPROT") — usually as a separate line item rather than as a modification to the original charge, though a few issuers (notably some Amex variants) display it as the original charge being reduced or zeroed.

Debit cards

Debit refunds typically take 3–7 business days because the money has to move from our merchant processor back to your bank's settlement account before posting to your individual checking account. If your debit card is tied to a credit-union account, allow up to 10 business days.

PayPal

PayPal refunds are typically instant on PayPal's side — the credit shows in your PayPal balance within minutes. If the original payment came from a linked bank account or card via PayPal, the credit may sit in PayPal balance and require you to transfer it (or it may auto-route to the funding source, depending on your PayPal settings). Allow up to 5 business days for the funding-source route.

Apple Pay / Google Pay

Apple Pay and Google Pay refund through whichever underlying card you used (Apple Pay does not have its own balance unless you specifically used Apple Cash). Same timing as the underlying card — credit card timing for credit-card-backed Apple Pay, debit timing for debit-backed.

Buy now, pay later (Shop Pay Installments, Klarna, Affirm, Afterpay)

BNPL refunds work in two stages: (1) we refund Shop Pay / Klarna / Affirm / Afterpay, which happens within 2 business days; (2) the BNPL provider applies the credit to your installment plan. If you've already paid 1 of 4 installments, the BNPL provider typically refunds the 1 paid installment to your funding source and zeros out the remaining 3 installments. Allow 3–10 business days end-to-end depending on which BNPL provider you used. Klarna in our experience is the fastest (3–5 days); Affirm is the slowest (up to 10 days for the underlying funding source to receive the credit).

"It's been 10 business days and I don't see it"

Email us back on the same thread. We'll re-confirm the Shopify refund went through (it always has — we're confirming for your bank's benefit), pull the merchant-side transaction ID and original payment reference number, and write you a one-line message you can forward to your bank. The bank can then trace the refund using the merchant transaction ID. We have not yet had a refund fail to post; long delays are always a bank-internal processing issue that resolves once the customer escalates with their issuer.

What about the original outbound shipping?

It's included in the same refund transaction. If your order was $89 product + $7.50 standard shipping + $7.20 tax = $103.70 charged, the refund is $103.70. We do not refund shipping as a separate transaction; it's bundled into the order refund.

The science of patience: why we strongly suggest finishing the bottle

The guarantee exists so you can change your mind without penalty. But we'd be doing you a disservice if we didn't tell you that, mechanistically, most longevity formulas need 4–8 weeks of consistent daily dosing to produce the effects the underlying trials are measuring. Here's the rough timeline for the major catalog actives, with trial citations.

  • NAD+ precursors (NMN, NR, niacinamide, liposomal NAD+): Plasma NAD+ rises within hours of the first dose. Tissue NAD+ and downstream sirtuin/PARP/CD38 effects compound over 4–8 weeks. Felt effects on energy, cognition, recovery, and sleep usually emerge between week 2 and week 6. Brakedal 2022 (NADPARK) measured cerebral NAD+ rise at 30 days. Yamaguchi 2022 measured 12-week safety and tolerability. Yoshino 2021 measured 10-week metabolic effects in pre-diabetic women. The honest read is that "I took NMN for 5 days and didn't feel anything" is almost always a too-short trial.
  • Sirtuin activators (Resveratrol, Pterostilbene): Sirtuin upregulation is dose-dependent and compounds over weeks. The early Sinclair lab work and later Smoliga 2011 review found felt effects emerge after consistent dosing of ≥250mg/day for 4+ weeks. Stack-dependent (sirtuins need NAD+ to do their work), so isolated resveratrol without NAD+ support tends to underperform vs. the NMN+Resveratrol stack — see the stack bundle.
  • Senolytics (Fisetin, Quercetin): Senolytic protocols are typically pulse-dosed (3 days on, 4 weeks off) rather than daily, modeled on the Mayo Clinic AFFIRM trial design (NCT03675724, NCT04210986). One pulse cycle is, by design, not enough time to feel sweeping effects; the trials report functional effects (gait speed, frailty markers) over 12-week and 24-week follow-up. If you're senolytic-curious, plan a 3-month trial with pulse cycles, not a 7-day trial.
  • Mitochondrial actives (CoQ10, PQQ, Urolithin A, ALA): Mitochondrial biogenesis is slow — Urolithin A's pivotal Andreux 2019 trial (Nature Metabolism) measured biomarker changes at 28 days and functional changes at 4 months. CoQ10's Q-SYMBIO 2014 trial (43% MACE reduction in heart-failure patients) measured outcomes over 2 years. The 30-day window is enough for the Urolithin A biomarker delta but not enough for the felt mitochondrial uplift most customers are seeking — that takes 8–12 weeks.
  • Epigenetic actives (Calcium AKG, Spermidine, TMG): Asadi Shahmirzadi 2020 (Cell Metabolism) measured CaAKG effects in mice at 4–6 months. The TruDiagnostic 2021 case series measured biological-age reduction over months, not weeks. Spermidine's Eisenberg 2016 (Nature Medicine) memory effects and SmartAge cognitive work measured outcomes at 3 months. Methyl-donor balance with TMG accumulates over weeks. None of these are "feel it the next day" molecules.
  • Glutathione precursors (NAC, Glycine, Glutathione, ALA): Sekhar 2021 GlyNAC measured glutathione restoration over 16 weeks. Effect on inflammation markers and mitochondrial biomarkers measured at 16 weeks, not 1 week. NAC monotherapy effects on mucus/respiratory function are faster (days), but the longevity-relevant glutathione restoration is the 16-week timeline.
  • Foundational actives (Vitamin D3+K2, Omega-3, Magnesium): Repletion timeline depends on baseline. Vitamin D takes 8–12 weeks to bring 25(OH)D from sub-optimal to optimal range. Omega-3 EPA/DHA index moves over 3–4 months. Magnesium repletion in deficient individuals takes 4–8 weeks.

Bottom line: 7 days is not a trial. 14 days is barely a trial. 30 days is a real trial for energy/cognition/sleep effects on NAD+ and sirtuin actives. 60–90 days is a real trial for mitochondrial, epigenetic, senolytic, and glutathione actives. The guarantee gives you 30 days from delivery, which is enough to evaluate the early-felt-effect actives and to commit to a longer trial of the slow-actives if the early signal is positive. The Protocols page walks through goal-specific stack timelines in detail; the How It Works page covers the week-by-week expected timeline from first order to month 6.

Damaged, lost, or incorrect orders

These are different from a satisfaction guarantee claim — they're shipment problems, not product problems. The mechanics are simpler and faster.

Damaged in transit

If your package arrives with the bottle broken, capsules crushed, the seal split, or the box visibly torn open, email us within 7 days of delivery with a photo of the damage. We re-ship a replacement at our cost via the same shipping speed you originally selected. You don't ship the damaged item back. If you'd prefer a refund instead of a replacement, we'll do that — your call. We've never declined a damage claim that included a photo.

Wrong product shipped

If you received a bottle of Resveratrol and you ordered Pterostilbene (this happened twice in our fulfillment history before we tightened the pick process), email us with the order number and the SKU of what you received. We re-ship the correct product at our cost. You can keep the wrong product or, if you'd like to send it back so we can re-stock, we provide a prepaid label — but it's never required.

Lost / never delivered

If your tracking shows "Delivered" but the package isn't at your address, the first step is to wait 2 business days (a meaningful percentage of "lost" packages turn up at neighbors, in mailroom queues, or behind shrubs in 24–48 hours). If after 2 days it's still missing, email us. We open a carrier investigation; once the carrier confirms the loss (typically 5–7 business days), we re-ship at our cost. If tracking shows the package never moved past origin or stalled in transit for >10 business days, we don't wait for the carrier — we re-ship immediately at our cost.

Address typo / undeliverable

If the package is returned to us as "undeliverable" because of an address typo, we email you with the corrected address you'd like, then re-ship. If you'd prefer a refund instead of correcting the address (e.g., you've moved and don't want it shipped to the new place), we refund.

"Delivered" but it was stolen off the porch

Porch piracy is technically not covered by the carrier or by us — once the carrier scans "Delivered" and the package was at the address, the chain of custody passes to you. That said, we have a one-time courtesy reship policy: if you tell us your package was stolen and ask for a reship, we'll do it once at our cost as a customer-relationship gesture. The second instance from the same address we ask the customer to file a police report and a homeowner's insurance claim, because at that point porch piracy is a recurring risk at that address that we can't insure against. We know this is rare and we want the relationship to be generous; we just can't operate a "porch insurance" line item.

Bundles, stacks, and multi-month orders

If you bought the NMN+Resveratrol Longevity Stack, the Beauty & Longevity Stack, or any starter bundle, the guarantee applies to the bundle as a unit. You can:

  • Refund the entire bundle — full refund of the bundle price, no return needed, all bottles are yours to keep.
  • Refund individual components — if you tried the NMN and loved it but the resveratrol didn't agree with you, we refund the resveratrol portion of the bundle (calculated as the standalone price of the resveratrol bottle minus its share of the bundle discount). Email us telling us which bottle didn't work and we calculate the partial refund.
  • Swap a component — if you'd rather have a different SKU than what's in the bundle (e.g., swap Resveratrol for Pterostilbene), we can do that on a one-time basis if the price difference is ≤$15. We re-ship the swap product, refund the price difference if any, and you keep the original.

For multi-month orders (3-pack, 6-pack of the same SKU, stocking up on a favorite), the 30-day clock starts at delivery of the order. If you ordered 3 bottles of NMN and 60 days later realize you don't want bottle 3, you can email us — we typically refund the unopened bottles even outside the 30-day window because, structurally, "I bought a 90-day supply, decided to stop after 30, refund the 60 I won't use" is a fair ask. Note this is generous, not policy: it's case-by-case, and we reserve the right to decline if a pattern emerges.

Gift orders

If you bought a product as a gift (you placed the order but the recipient is the actual user), the guarantee covers it. The mechanics are slightly different because the recipient and the buyer are different people:

  • The buyer (the person who paid) is the one who can claim the refund, because the refund routes back to the buyer's payment method.
  • The recipient (the gift recipient) can email us if the product wasn't right, and we'll coordinate with the buyer (with the recipient's permission to share that the gift was returned, or anonymously if they prefer).
  • We've handled situations where the recipient asked us not to tell the gift-giver — we can refund to a gift card to the recipient's account at their request, with the buyer notified that the product was returned but not the reason. Email us; we'll figure out the right routing.
  • If the gift was an existing-customer recommendation (the buyer is a regular customer and bought a starter bundle for someone they recommended us to), the recipient gets first-time-customer guarantee treatment — full no-questions refund.

International orders

We ship to most international destinations from our US fulfillment center. The guarantee applies to international orders with three operational notes:

  • Currency conversion. Your card was charged in USD and converted to your home currency by your bank at the time of the charge. The refund is processed in USD; your bank reconverts to your home currency at the refund-time exchange rate. Because exchange rates fluctuate, the home-currency refund amount may differ slightly from the home-currency charge amount (we've seen ±2% in either direction). We refund the full USD amount you paid us; the home-currency variance is a function of your bank's FX, not a partial refund from us. If the variance is meaningful (e.g., >5%), email us and we'll consider a top-up.
  • Customs and import duties. If your country's customs authority charged you import duties or VAT on the package, those fees are paid to your government, not to us — we can't refund them. The order refund is the amount you paid us, not the amount your customs authority assessed.
  • Return shipping is never required. The keep-the-bottle policy is especially valuable internationally because international return shipping would typically exceed the value of the refund. You email us, we refund, you keep the bottle.

We currently ship to: US, Canada, UK, EU member states, Australia, New Zealand, Japan, South Korea, Singapore, Hong Kong, Mexico, Brazil, UAE, Israel, and most other developed markets. We don't ship to: countries currently subject to US trade sanctions (the list updates; check at checkout), and a small set of jurisdictions that classify our actives as restricted (e.g., NMN is currently not allowed in some Australian state-level pharmacy regulations — we'll flag this at checkout). See the Shipping Policy for the live list.

Subscriptions and auto-ship

The first delivery on any subscription is fully covered by the guarantee — same as a one-time order. After that, the rules are:

  • You can cancel a subscription at any time through the subscription management portal (link in your account, or write us and we'll cancel from our side). No cancellation fee, no commitment period.
  • If a subscription delivery already shipped before you cancelled, the delivery is covered by the standard guarantee (30 days, full refund, keep the bottle).
  • If a subscription delivery is queued for shipment in the next 24 hours and you cancel, we'll attempt to pull it from the fulfillment queue. If we catch it in time, no charge, no shipment. If it already left the warehouse, it's a standard guarantee claim once it arrives.
  • Subscription pricing (typically 10% off the one-time price) carries the guarantee at the discounted price you actually paid.
  • If you suspect a subscription was set up by mistake (e.g., you intended to buy one bottle and clicked "subscribe & save" without realizing), email us — we cancel the subscription and refund any deliveries you didn't intend to receive, no questions.

Allergic reactions, side effects, and medical concerns

If you experience any allergic reaction, intolerance, or unexpected side effect after taking any of our products, stop the product immediately and email us. These claims are processed the same day they're reported and are not subject to the 30-day window — adverse reactions are always covered, period. Common scenarios we handle:

  • GI upset on first dose. Berberine, NAC, fish oil, magnesium, and some NAD+ precursors can cause first-dose GI upset (loose stools, mild nausea, gas) that typically resolves within 3–4 days as the body adjusts. We'll suggest taking the product with food, splitting the dose, or switching to a different time of day. If GI symptoms persist past day 4, refund the bottle.
  • Histamine-like reactions. Quercetin, curcumin, and a few other actives can produce histamine-modulating effects that some sensitive individuals experience as flushing, headache, or congestion. These almost always indicate the product isn't a fit for that individual; refund.
  • Sleep disruption. NAD+ precursors taken late in the day can produce stimulant-like sleep disruption in sensitive individuals (the energy effect is real and unwelcome at 9pm). We'll suggest moving the dose to morning. If morning dosing also disrupts sleep architecture, refund.
  • Allergy to fillers/excipients. If you're sensitive to a specific filler (rice flour, magnesium stearate, gelatin capsules vs. veggie capsules, soy lecithin in some emulsified products), we can usually identify a similar SKU with a different filler profile or, failing that, refund.
  • Drug interactions. If your prescribing physician identifies an interaction between one of our products and a medication you're on (most commonly anticoagulants with omega-3 or vitamin K2, immunosuppressants with curcumin, certain antidiabetics with berberine), stop the product and email us — full refund regardless of the 30-day window.

We are not a medical provider and these emails are not medical advice. We refund the product. Anything beyond that — whether to continue or modify your protocol, whether to add or remove SKUs, whether the underlying issue was the product or something else — is a conversation with your physician. We do, however, log every adverse-reaction email and share aggregated patterns with our manufacturing partner for QA review. See our Quality page for details on the manufacturing-side QA process.

Expired product, near-expiry, and shelf-life questions

Every bottle has a "best by" date printed on the label — typically 24 months from the manufacturing date, sometimes 18 or 36 months depending on the active. The mechanics:

  • If you receive a bottle within 90 days of its expiry date, email us — that's a fulfillment error and we'll re-ship a fresher bottle at our cost. We rotate stock FIFO and our normal shipping window is 6–18 months from expiry, so a near-expiry bottle is unusual and we treat it as a stock rotation miss.
  • If you bought a bottle and it expires before you finish it, the standalone shelf-life of most actives is generous (NAD+ precursors keep their potency for 12+ months past printed expiry if stored cool/dry; curcumin and resveratrol similar; fish oil is the active most sensitive to oxidation past expiry). We don't take expired bottles back, but we'll honor a 30-day-from-expiry-discovery refund if you email us realizing you didn't finish a bottle that expired in your cabinet.
  • For long-term storage, our recommendation is "cool, dark, dry" — kitchen pantry away from the stove is fine; bathroom medicine cabinet (humid + temperature-cycled) is the worst spot. Refrigeration extends shelf life on most actives but isn't required.

Discount codes, sales, gift cards, and promotional pricing

  • Discount-coded orders refund at the price you actually paid. If you used FIRST20 for 20% off and the order was $100 charged, the refund is $100 — not the $125 list price.
  • BOGO and bundled-discount orders refund the bundled total, not the implied per-unit price. If you got "buy 2 NMN, get 1 Resveratrol free" and want to refund the resveratrol, we'd note that the resveratrol was $0 in the order — we don't refund a SKU you didn't pay for. The full-bundle refund is always available.
  • Gift-card-paid orders refund to the gift-card balance, not to a card. If you paid with a $50 gift card and refunded a $30 order, the $30 returns to the gift card.
  • Mixed-payment orders (e.g., $20 gift card + $80 credit card) refund proportionally — $20 to the gift card and $80 to the credit card on full refund, or the same proportion on a partial refund.
  • Sale-priced orders work the same way as discount-coded orders — refund equals what you paid us.
  • If you missed a discount code that you intended to use, email us within 24 hours of the order with the code; we'll apply it post-hoc and refund the difference. Past 24 hours we generally can't, but ask anyway — case-by-case judgment.

Chargebacks vs. guarantee claims — please email us first

If you initiate a chargeback through your bank or card issuer rather than emailing us, here's what happens mechanically:

  • The bank pulls the funds back from us provisionally and notifies us of the dispute.
  • We respond with shipping records, delivery confirmation, the order details, and (now) a copy of this guarantee policy showing that the customer's preferred remedy was available without a chargeback.
  • The card network arbitrates. Resolution typically takes 30–60 days.
  • If the chargeback resolves in your favor, the funds stay with you. If it resolves in our favor, the funds return to us and we email you offering to process the refund directly under the guarantee anyway — because the guarantee outcome is what you wanted, and we don't gain anything from "winning" a chargeback against a customer who could have just emailed us.
  • Chargebacks cost us a $15–$25 processing fee from our payment processor regardless of who wins, plus our team's time, plus your time waiting 30–60 days for resolution. The email path takes 5–10 days end-to-end and costs neither of us anything beyond a few minutes.

If you're worried we won't honor the guarantee — that's the only reason to chargeback first instead of emailing — please just email us. Every refund email is read by a human who works on the catalog. The guarantee on this page is the actual policy, not marketing copy. We have not declined a 30-day-window guarantee email since the storefront launched.

How our guarantee compares to the industry

This section is for the customer who is comparing us to other supplement vendors and wants to know how our policy stacks up. We did the comparison shopping; here's what we found across the longevity-supplement category as of this catalog's most recent industry scan.

  • Industry-typical 30-day return policy: Often "unopened only," requires return shipping at customer expense, restocking fee 10–25%, store credit instead of cash refund, and a return-merchandise-authorization form that takes 5–10 business days to be approved. The de-facto refund rate for customers who actually try the product is near zero — by design.
  • The "60-day money-back" headline of some larger brands: The headline is generous, but most variants we've examined exclude shipping, charge a restocking fee, require return shipping at customer cost, and have an "authorized retailer only" clause that excludes a meaningful slice of orders. Read the fine print.
  • The "lifetime guarantee" supplement vendors: Almost universally pair the lifetime headline with a "must be unopened" requirement, which makes the guarantee operationally meaningless — you can't evaluate a supplement without opening it. We don't do this.
  • Subscription-only-discount vendors (the "we'll give you a great price if you subscribe" mechanic): The discount is real but often paired with a 12-month minimum commitment or a cancellation friction (must call to cancel; can't cancel via email; auto-renews after a price-change notification you may not have noticed). Our subscriptions are cancellable any time with no penalty, and the guarantee on the first delivery is identical to a one-time order's guarantee.
  • The "we don't take returns on supplements at all because of FDA regulations" vendors: This is a misreading of FDA rules. The FDA prohibits resale of returned supplements as new product, but does not prohibit refunds — vendors can (and we do) refund and dispose of the returned product. The "no returns" policy is a vendor choice, not a regulatory requirement.

Our policy is, intentionally, on the generous end of the category. We think the math works in our favor (loyal customers pay back many times the cost of a refunded first order; afraid-to-try customers cost us much more than we'd lose to occasional refund abuse), and we think it's the right way to operate in a category that has earned distrust by being miserly with refunds.

A note from Victor

"I built True Health Protocol around the products I personally take and the protocols I personally run. The first version of the catalog was things I was already buying for myself, my family, and a small circle of friends. The catalog has grown well past that, but the operating principle hasn't: I won't sell something I wouldn't take, and I won't take a customer's money if the product didn't deliver. The guarantee is the formal expression of that. If you want to write me directly about a refund, the science behind a formula, or a stack you're considering, the address on every page — support@truehealthprotocol.health — reaches me and the small team who work on the catalog with me. We read every email." — Victor

Frequently asked questions

What if I don't have my order number?

Email us from the address you used to place the order. We can look it up by email address. If you placed under a different email (e.g., spouse's address, work email at a job you've left), tell us the approximate order date and a name on the shipping label.

Do I need to call? Is there a phone number?

No phone number — we operate the support function via email so the response is from a human who can read the order context, your prior communications, and the product details before responding. A phone tree would be faster on first contact but slower in resolution. The first email reply lands within 1 business day.

Can I claim partway through a bundle?

Yes. See the bundles section. Partial refunds on bundles are calculated as the standalone price of the un-loved component minus its share of the bundle discount.

I claimed the guarantee, but I want to try the product again later. Can I reorder?

Of course. The guarantee is per-order, not per-customer. If you claimed a refund on NMN three months ago and decide to re-try with a different stack (say, adding TMG or moving the dose to morning), order again. The guarantee on the new order is the standard 30-day policy, and we won't hold the prior refund against you. We have customers who refunded their first order and are now on month 18 — the protocol clicked the second time around with a tweak.

Will my refund show as a separate transaction or modify the original?

Bank-dependent. Most issuers post the refund as a separate credit transaction. A few (notably some Amex products) display it as the original charge being reduced or zeroed. Both are correct.

What if I paid with a card that's now expired or closed?

The refund still routes through the original card processor, and most banks will accept the refund and credit it to your replacement card automatically (linked via your account). If the card is fully closed (account closed, not just card expired), the refund either bounces back to us (in which case we re-process to a new payment method you provide, or to a check via mail if you prefer) or sits in escheatment with the bank for ~90 days before being released. Email us with the expired-card situation and we'll coordinate.

I'm in the middle of a chargeback dispute. Can I still claim the guarantee?

Email us — we'd much rather process the guarantee directly than fight a chargeback. If you're willing to withdraw the chargeback, we process the refund within 2 business days and you have the funds in 5–7. If the chargeback is mid-arbitration and can't be withdrawn, we cooperate with the bank's process and the same financial outcome lands.

Does the guarantee cover allergic reactions or side effects?

Yes — see the allergic reactions section. These are processed the same day they're reported and not subject to the 30-day window.

What about products that are out of stock when I want to reorder?

If you previously refunded a SKU and want to re-try when it's back in stock, sign up for the back-in-stock notification on the product page. We typically have 24–48 hours of notice when the next batch lands, and notification emails go out same-day.

Can I get the guarantee in writing for my records?

This page is the guarantee, in writing. The page URL is https://truehealthprotocol.health/pages/guarantee. The Wayback Machine indexes us monthly if you want a third-party-archived copy. The Refund Policy page also reflects the same guarantee in formal-policy language.

Does the guarantee apply if I bought during a sale or with a discount code?

Yes — see the discounts and promos section. The refund is the price you actually paid, not the list price.

What if I paid with a gift card?

The refund returns to the gift-card balance.

Can I exchange for a different product instead of refunding?

Yes — within the 30-day window, we can swap a product you didn't love for a different SKU (one-time, price difference up to ±$15 absorbed by us if the swap is roughly comparable). If the swap is for a meaningfully more expensive product, we'll process a partial refund of the original and you place a new order at the new price. Email us with the swap idea and we'll quote the mechanics.

Does the guarantee cover orders placed by my spouse or family member?

Yes — the guarantee follows the order, not the named customer. If your spouse placed an order on a household card and the product wasn't right for whoever ended up taking it, email us from the email address on the order (we can look up by name + shipping address if needed) and we process the refund to the original payment method.

What if I'm not sure whether the product is "working"?

This is the most common ambiguity. If you've been on a formula for 30 days and you're uncertain whether the felt effect is the product or placebo or natural variance, email us — we don't make you decide on the spot. A 30-day extension to the trial is almost always available, no questions, in exchange for a quick "where are you at" email at day 60 to help us understand which signals you're tracking and whether they moved. The goal is for you to have a clear answer, not for us to push the refund window.

Can I refund just one bottle from a 3-pack of the same SKU?

Yes. We refund the per-bottle price you actually paid (3-pack discount distributed across the 3 bottles). You keep the unrefunded bottles.

What's your process for repeat refund claims from the same customer?

The first guarantee claim is no-questions, no-conversation. The second is processed but with a request for a brief conversation about whether the SKUs and stacks were a fit. By the third, we typically reach out proactively to suggest different products or to recommend a consultation with a longevity-experienced clinician — we are not a fit for everyone, and the right answer for some customers is "this catalog isn't your match." We don't ban customers or block reorders.

If the product was on backorder when I placed the order, when does the 30-day clock start?

At delivery, not at order date. If you ordered a backordered SKU on January 1 and it didn't ship until February 15 and didn't deliver until February 20, you have 30 days from February 20.

What if my country's customs held the package and I never received it?

If customs holds the package for >30 days and ultimately returns or destroys it, that's a delivery failure on the carrier side. We refund the order in full once we have carrier confirmation that the package was returned or destroyed. If customs releases the package eventually, we don't claw back the refund — your call whether to keep the bottle or send it back (we don't ask you to).

Can I get a refund if the price dropped after my purchase?

If the price drops within 7 days of your order (e.g., we ran a sale you missed), email us and we apply the price difference as a partial refund. Past 7 days we generally don't price-protect, because the catalog's prices fluctuate with promotions and we don't want to incentivize delaying purchases waiting for a sale.

I want to order again but I'm worried about the same issue. Can we talk through the protocol first?

Yes. Email us with what didn't work last time and what you're trying to address; we'll suggest a different SKU, a stack adjustment, a dosing change, or a timing change. The catalog has 40 SKUs across 18 collections (full catalog) — there's almost always a better fit for a specific goal than the first thing tried.

Does the guarantee cover items returned because of shipping address typos?

Yes — see the damaged/lost/incorrect orders section. Address-typo undeliverable returns we either correct + reship or refund, your call.

What if my product looks different from the photo on the website?

Bottle shape, label color, or excipient profile occasionally varies between manufacturing batches as our manufacturing partner refines packaging or substitutes a clinically-equivalent excipient (e.g., shifting from rice flour to cellulose). The active ingredient, dose, and certifications on the label are the contract; cosmetic differences aren't. If the difference concerns you, email us with a photo and we'll explain what changed and offer a refund if you'd prefer not to take the new variant.

Can I give the bottle to a friend after refunding?

Yes — keep-the-bottle means it's yours. We don't ask what you do with it. Many of our refunds go to "this didn't work for me but my mom takes it now" outcomes, which is fine.

I'm a healthcare provider — can my patients use the guarantee?

Yes, every order is independent of provider relationship. If a patient orders through a recommendation from you, they get the standard guarantee. If you have a practitioner-account inquiry (bulk orders, white-label, NAD+ precursor study supply for a clinical practice), email us at support@truehealthprotocol.health and we'll route to the practitioner channel.

What if I'm taking the product and it's working great, but I want to switch to a competitor — does that void anything?

Of course not. The guarantee is between us and you on the order you placed; what you do with the product, whether you switch vendors, whether you stack our SKU with a competitor's SKU, whether you decide to stop the protocol entirely — none of that affects the refund right.

How are you funding this? It seems like the math wouldn't work.

The math works because the satisfaction-claim rate is materially lower than category norms (we credit the science-based product education on every product page, the protocol guidance on the Protocols page, and the realistic timeline framing on the How It Works page — all of which front-load expectation alignment so customers know what they're signing up for). Our cost of acquiring a new customer is meaningfully higher than the cost of a refunded first order. The generous guarantee converts the afraid-to-try segment of the audience into try-once customers, a healthy share of whom convert to repeat customers. The financial logic is straightforward: trust costs less to give than it does to win back when it's been violated. Empirically the policy pays for itself many times over.

What if I'm currently outside the 30-day window but the product expired in my cabinet before I had a chance to use it?

See the expired product section — we honor a 30-day-from-expiry-discovery refund on this scenario.

Will the refund cover sales tax I paid?

Yes. The refund is the full amount that hit your statement, including tax.

Are there any countries or states where the guarantee doesn't apply?

The guarantee applies wherever we ship. The mechanical detail is that some BNPL providers operate in only certain countries, so the BNPL refund routing in the refund timing section applies only where the BNPL provider operates. International customers using a regular credit card or PayPal get the same guarantee as domestic customers.

The full operational policies are linked at the bottom of every page. The science, sourcing, and protocol explanations sit on dedicated pages.

Still have questions? Email us.

If anything on this page is ambiguous, contradictory, or doesn't match your situation, email support@truehealthprotocol.health and ask. The page is generous on purpose; if your situation is on the edge of "covered" or "not covered," the answer is almost always "covered."

Last updated: 2026-05-09. The guarantee on this page is the controlling policy; the formal Refund Policy is mirrored at /policies/refund-policy. If the two ever disagree, the more generous interpretation governs. — The True Health Protocol team.