Collagen Supplements

Every collagen supplement we carry — Marine Type I for skin, hair, and nails; Multi Collagen (Types I, II, III, V, X) for skin plus joints, gut, and bone; powder or capsules; and the Beauty & Longevity Stack that adds the cofactors collagen actually needs to assemble (Vitamin C, biotin, hyaluronic acid). Trial-matched 5,000 mg/day hydrolysed peptide doses, third-party tested, and dosed to the published clinical literature rather than to a marketing label.

30-second answer

• What works: hydrolysed collagen peptides at 2.5–10 g/day (most trials cluster at 5 g/day) for ≥ 8 weeks. The active payload is not "collagen" — it is the bioactive di- and tri-peptides Pro-Hyp, Hyp-Gly, Gly-Pro-Hyp that survive digestion, enter circulation intact, and signal fibroblasts to upregulate Type I/III collagen synthesis.
• Marine vs Multi: Marine collagen is ~90% Type I, ~2–3 kDa peptides, fastest-absorbing — the strongest pick if your goal is skin/hair/nail elasticity. Multi Collagen Complex spans Types I/II/III/V/X — the right pick if you also want joints, cartilage, gut lining, and bone density covered in one bottle.
• Powder vs capsules: A 5 g clinical dose is ~1–1.5 g per capsule × 4–6 capsules — fine if you prefer pills. Powder hits the same dose in one scoop in coffee or water, which is why most trials used powder form.
• Cofactors are non-negotiable: Collagen synthesis is a cofactor-limited reaction. Vitamin C is the rate-limiting cofactor for prolyl-4-hydroxylase and lysyl hydroxylase (no Vitamin C → no triple-helix collagen, full stop). Biotin gates keratin synthesis. Hyaluronic acid co-administered with collagen showed additive skin-hydration effects in Asserin 2015 and Kawada 2014. The Beauty & Longevity Stack ships all four together.
• Realistic timeline: First measurable change in skin elasticity ≈ 4 weeks (Proksch 2014). Visible wrinkle-depth and hydration changes ≈ 8 weeks. Hair fullness and nail growth-rate changes ≈ 12 weeks. Joint comfort (Type II / FCHG-2) ≈ 13–24 weeks (Clark 2008, Zdzieblik 2017). Stop dosing and benefits regress over 4–8 weeks as new turnover catches up.

What's in this collection

• Marine Collagen Peptides 5,000 mg — wild-caught marine, hydrolysed Type I, ~2–3 kDa peptide weight, single-source. Best pick if your goal is skin elasticity, hair density, or nail growth rate; this is the dose that matched Proksch 2014 and Kim 2018 trials.
• Multi Collagen Complex — five collagen types (I, II, III, V, X) sourced from grass-fed bovine, wild-caught marine, chicken sternum, and eggshell membrane. 240 capsules, capsule format. Best for stacks that target skin and joints and gut lining at once.
• Multi Collagen Peptides Powder — same five-type blend, 5 g per scoop, 90 servings, unflavoured for coffee or smoothies. Best if you want the full clinical 5 g dose in one shot rather than 4–6 capsules.
• Beauty & Longevity Stack Bundle — Marine Collagen + Biotin 10,000 mcg + Hyaluronic Acid 200 mg + Liposomal Vitamin C 1,000 mg. The pre-engineered "skin/hair/nails done right" bundle: substrate (collagen) + signalling cofactor (Vitamin C) + synthesis cofactor (biotin) + dermal-hydration partner (HA). Ships at a discount vs buying the four bottles individually.

What collagen actually is — and why most supplements fail

Collagen is the most abundant protein in the human body — roughly 30% of total protein mass, ~75% of dry-weight skin, ~90% of bone organic matrix, the main structural protein of tendon, ligament, cartilage, blood-vessel walls, and the extracellular matrix everywhere else. It is built by fibroblasts (skin), chondrocytes (cartilage), osteoblasts (bone), and a handful of specialised secretory cells, and it is built to a strict triple-helix architecture stabilised by an unusual amino-acid sequence — Glycine every third residue, plus large quantities of proline and hydroxyproline.

That triple-helix only forms if proline and lysine residues get hydroxylated by prolyl-4-hydroxylase and lysyl hydroxylase — two iron-dependent enzymes that require Vitamin C as a stoichiometric cofactor. No ascorbate, no triple helix. This is not a supplement-marketing factoid; it is the same biochemistry that makes scurvy a collagen-failure disease (gum tissue, blood-vessel wall, and dermis all fall apart for lack of stable collagen).

From age ~25 onward, dermal collagen synthesis decreases at roughly 1–1.5% per year (Shuster 1975 review, then Varani 2006 J Invest Dermatol on intrinsic vs photoaged skin). By age 50 you have lost ~25–35% of dermal Type I collagen mass. Compounding that, the collagen you do have accumulates advanced-glycation end-products (AGEs) over time, and matrix-metalloproteinases (MMP-1, MMP-3, MMP-9) chew up extracellular collagen faster than you replace it — both processes accelerated by UV exposure (Fisher 2002 Arch Dermatol), elevated blood glucose (Gkogkolou 2012 Dermato-endocrinology), and chronic systemic inflammation. The visible result is the "skin aging composite": loss of elasticity, fine lines, deeper wrinkles, dryness, slower wound healing, brittle nails, hair thinning, and joint cartilage degradation.

Eating gelatine or drinking bone broth gives you collagen-derived amino acids, but most of those gets absorbed as free Glycine, free Proline, free Hydroxyproline and used by your body for whatever it needs that day — not preferentially for new collagen. Hydrolysed collagen peptides are different. The hydrolysis process pre-cleaves intact collagen into 2–10 kDa peptides; a fraction of those — specifically the di- and tri-peptides containing hydroxyproline (Pro-Hyp, Hyp-Gly, Gly-Pro-Hyp) — survive digestion and appear intact in plasma 1–2 hours after ingestion (Iwai 2005 J Agric Food Chem; Shigemura 2009 J Agric Food Chem). Those circulating peptides act as signalling molecules that bind fibroblast surface receptors and upregulate procollagen, hyaluronic acid synthase 2 (HAS2), and elastin gene expression (Asai 2017 J Funct Foods; Ohara 2010 J Dermatol Sci). That is the mechanism that distinguishes collagen peptides from "more protein" — and why dose, peptide weight, and source matter.

Five mechanisms hydrolysed collagen peptides actually work through

1. Bioactive peptide signalling (Pro-Hyp / Hyp-Gly)

Collagen-derived di- and tri-peptides containing Hyp survive digestion intact, enter circulation, and bind fibroblast receptors. Pro-Hyp upregulates HAS2, COL1A1, and COL3A1 transcription and triggers fibroblast proliferation in the papillary dermis (Shigemura 2009; Ohara 2010; Asai 2017). This is the dominant mechanism behind every positive trial in skin and joints. Implication for product choice: peptide molecular-weight matters — hydrolysed peptides at ~2–3 kDa pass through the gut wall; whole gelatine at 100+ kDa does not. Both Marine Collagen Peptides and Multi Collagen Peptides Powder are enzymatically hydrolysed to the trial-matched range.

2. Substrate flooding for triple-helix assembly

Collagen is unusual in that it is ~33% Glycine and ~22% Proline+Hydroxyproline — amino-acid ratios that do not match general dietary protein. A 5 g hydrolysate dose floods the amino-acid pool with the exact substrates fibroblasts and chondrocytes need to assemble new triple helices, which is why the effect size of 5 g hydrolysed collagen on dermal density is consistently larger than 5 g whey protein at matched calories (Proksch 2014 Skin Pharmacol Physiol). Pair with free Glycine 1,500 mg if your goal is connective-tissue substrate maximisation rather than skin alone.

3. Vitamin-C–dependent triple-helix stabilisation

The two enzymes that hydroxylate proline and lysine residues — without which the triple helix unravels — both use Vitamin C as a cofactor. Sub-optimal ascorbate status is a common, silent reason a "good" collagen dose under-performs. The Liposomal Vitamin C 1,000 mg in the Beauty Stack is sized to saturate plasma ascorbate and bypass the SVCT2-transporter ceiling that blocks high-dose oral C from absorbing fully (Davis 2016; Padayatty 2004).

4. Synergistic dermal-hydration cofactors

Hyaluronic acid is the second non-collagen pillar of healthy dermis: it holds up to 1,000× its weight in water in the extracellular matrix. Oral HA at 120–200 mg/day independently improves dermal hydration in 6–12 week trials (Kawada 2014, Oe 2017), and HA-collagen co-administration is additive on skin elasticity (Asserin 2015 J Cosmet Dermatol). The Hyaluronic Acid + Vitamin C bottle is dosed at the trial-matched 200 mg of mid-molecular-weight HA. Biotin (Vitamin B7) is the carboxylase cofactor required for keratin synthesis; deficiency presents as brittle nails and hair shedding before any other sign — Hochman 1993 N Engl J Med showed 2.5 mg/day biotin returned brittle-nail thickness toward normal. The Biotin 10,000 mcg bottle covers any dietary insufficiency at four times the deficiency-correction dose.

5. Cartilage, bone, and gut-lining matrix support

Type II collagen (chicken-sternum, eggshell-membrane) is the dominant cartilage type — Lugo 2016 Nutr J showed undenatured Type II at just 40 mg/day improved knee discomfort in osteoarthritis at 180 days. Type II + I + III hydrolysate at 10 g/day in young athletes (Clark 2008 Curr Med Res Opin; Zdzieblik 2017 Br J Nutr) reduced activity-related joint pain and improved fat-free mass over 12–24 weeks. Type X is found at the growth plate and is a marker of mineralised cartilage. Type V is a regulator of fibril diameter and is enriched in cornea, hair follicles, and placenta. Gut-lining benefits (intestinal epithelial repair) come primarily from Glycine and Glutamine substrate effects of any hydrolysate — bone-broth folklore that has measurable mechanism but is downstream of plain protein adequacy. The Multi Collagen Complex and Multi Collagen Peptides Powder deliver the full five-type matrix in one product — pick those over single-source marine if your goal includes joints, cartilage, or post-menopausal bone density.

Clinical-evidence table — human trials we trust

Two consistent patterns across these trials: (1) 2.5 g/day is the minimum effective dose for skin endpoints (Proksch, Hexsel, Schunck, Kim) and 5 g/day is the all-purpose dose that hits skin, joint, and bone endpoints (Asserin, König, Clark); (2) effect size scales with cofactor co-administration — Shaw 2017 showed tendon collagen synthesis nearly doubled when collagen was paired with 50 mg Vitamin C versus collagen alone, the cleanest demonstration of why we ship the Beauty & Longevity Stack as a bundle rather than as a single bottle.

Dose curve — how to read the trials

Source comparison — which collagen for which goal

Powder vs capsules — same dose, different ergonomics

Capsule loading: a 5 g clinical dose is ~1.0–1.5 g of collagen peptides per HPMC capsule (capsule volume cap), which means the trial-matched dose is 4–6 capsules. Multi Collagen Complex 240 capsules gives you a 60-day supply at 4 capsules/day. Capsules are best when you already have a morning supplement routine and don't want to add a powder step.

Powder loading: Multi Collagen Peptides Powder ships 1 lb / 90 servings at 5 g/scoop, unflavoured for hot or cold liquids. Powder is best when you want one-shot dosing, like protein adequacy, or when you stack 10–15 g doses (Asserin 2015, Clark 2008, Zdzieblik 2017 trial range). It also dissolves in coffee under 60 °C without altering peptide bioactivity (collagen peptides survive the typical pour-over temperature; only sustained boiling for many minutes denatures the bioactive fragment chemistry).

Per-product breakdown

Marine Collagen Peptides 5,000 mg

Source: wild-caught marine, single-origin fish, hydrolysed to ~2–3 kDa. Type: ~90% Type I (the dominant skin-and-hair collagen). Dose: one scoop (5 g) hits the König 2018 / Kim 2018 / Asserin 2015 trial range. Best for: skin elasticity, hair density, nail growth-rate; pescatarian-friendly. Pair with: Vitamin C (cofactor), hyaluronic acid (synergy on hydration), Biotin (keratin synthesis). Already bundled in the Beauty & Longevity Stack if you want it pre-cofactored.

Multi Collagen Complex (capsules, 240 ct)

Source: grass-fed bovine hide + wild-caught marine + chicken sternum + eggshell membrane. Type: Types I, II, III, V, X. Dose: 4 capsules/day = ~5 g peptides; 60-day supply. Best for: "all of it in one bottle" — skin + joints + cartilage + gut + bone simultaneously; people who don't want a powder step in their routine. Pair with: Vitamin C, biotin, glycine, hyaluronic acid; or just take the Beauty Stack alongside if you also want skin-targeted dose layered on top.

Multi Collagen Peptides Powder (1 lb)

Source: same five-source blend as the capsules. Type: I, II, III, V, X. Dose: 1 scoop = 5 g peptides; 90 servings. Best for: daily 5 g floor, athletes / active adults stacking 10 g (2 scoops), Zdzieblik-style 15 g protocols (3 scoops + resistance training), and anyone who finds 4–6 capsules a friction step. Mixing: coffee, hot tea (under 80 °C), water, smoothies, oatmeal — unflavoured and dissolves clear. Pair with: Vitamin C alongside the dose; the bioavailability ceiling on prolyl-hydroxylase is co-administered ascorbate (Shaw 2017).

Beauty & Longevity Stack Bundle

What's in it: Marine Collagen 5,000 mg + Biotin 10,000 mcg + Hyaluronic Acid 200 mg + Liposomal Vitamin C 1,000 mg. What that gets you: a fully cofactored skin/hair/nail protocol — substrate (collagen), the rate-limiting cofactor for triple-helix assembly (Vitamin C), the keratin-synthesis cofactor (biotin), and the dermal-hydration synergy partner (HA). Why this exists: taking collagen alone is the most common reason a protocol underperforms. Shaw 2017 doubled tendon-collagen synthesis by adding Vitamin C; Asserin 2015 showed HA-collagen synergy on hydration; Hochman 1993 showed biotin's specific signature on brittle-nail thickness. Buying the four bottles separately is feasible but priced higher than the bundle. Best for: first-time collagen buyer who wants the protocol done correctly; gift recipient; anyone whose skin/hair/nail goal is the entire reason they're starting collagen.

Stacking guide — what to take with collagen

The Beauty Stack (skin / hair / nails)

This is the canonical pairing the Beauty & Longevity Stack ships pre-bundled — but if you already own bottles, the recipe is: Collagen 5 g/d + Vitamin C 500–1,000 mg/d + Hyaluronic Acid 120–200 mg/d + Biotin 5–10 mg/d. Mechanistically: collagen provides the substrate signal, Vitamin C makes the cofactor available for prolyl-hydroxylase, HA provides the dermal-hydration partner, and biotin gates keratin synthesis (which collagen alone does not address). Add Glycine for substrate maximisation in older adults or sarcopenia-risk profiles. Cross-link products: Marine Collagen, Liposomal Vitamin C, Hyaluronic Acid + Vitamin C, Biotin 10,000 mcg.

The Joint Stack

For knee, hip, finger, or load-bearing-joint comfort: Multi Collagen Powder 10 g/d (Clark 2008, Asserin 2015) + Glycine 1,500 mg + Vitamin C 1,000 mg. The Type II contribution from chicken-sternum within the Multi Collagen blend covers the cartilage-specific endpoint; adding Glycine maximises substrate for cartilage triple-helix; Vitamin C is the same cofactor logic. If you also want the Lugo 2016 undenatured-Type-II mechanism (immune-mediated, low-dose), that pathway is preserved at the Multi Collagen Type II fraction. Cross-link: Multi Collagen Powder, Glycine 1,500 mg, Liposomal Vitamin C.

The Bone-Density Stack (peri- and post-menopause)

Built around König 2018 (12-month BMD trial in postmenopausal women): 5 g/d collagen peptides + 2,000–4,000 IU Vitamin D3 + 90–180 mcg MK-7 K2 + 200–400 mg magnesium. Collagen feeds the osteoblast organic matrix (which is ~90% collagen by mass); D3 raises calcium absorption; K2 directs that calcium into osteocalcin-mediated bone deposition rather than soft-tissue calcification (Maresz 2015 Integr Med); magnesium is the cofactor in over 300 enzymatic reactions including bone-matrix synthesis. Cross-link: Foundational Health, Multi Collagen Powder.

The Sarcopenia / Muscle-Preservation Stack

Zdzieblik 2017 trial template — for adults age 60+ or anyone in active fat-loss with concern for lean-mass preservation: 15 g/d collagen peptides + 2.5–5 g/d creatine monohydrate + resistance training 2–3×/week. Collagen at 15 g doubles tendon collagen synthesis (Shaw 2017) and provides the connective-tissue substrate that prevents the typical sarcopenia tendon-stiffness drop; creatine is the highest-evidence muscle-preservation supplement. Cross-link: Multi Collagen Powder.

The Anti-Aging Foundation Stack

If you are layering collagen onto a fuller longevity protocol — NMN + Resveratrol + Spermidine + collagen — the rationale is: NMN/Resveratrol restore the SIRT1 / NAD+ axis that keeps fibroblast metabolism healthy; spermidine activates autophagy (which clears damaged collagen and AGE-modified extracellular matrix); collagen provides the rebuild substrate; Vitamin C makes assembly possible. This is the longevity-protocol-meets-beauty-stack approach. Cross-link: NAD+ Family, Longevity Essentials, Beauty & Anti-Aging, Foundational Health.

Where this collection sits in the catalog

Collagen is the entry product in the Beauty & Anti-Aging sub-collection — it's the "felt result" supplement most people start with because the endpoints (skin elasticity, hair, nails, joint comfort) are observable in 4–12 weeks rather than the multi-month biomarker windows for NAD+ or senolytic protocols. From here, most customers branch into two patterns:

• Beauty-first path: Beauty & Longevity Stack → add Longevity Essentials (NMN, Resveratrol) → eventually a Foundational Health floor (D3+K2, magnesium, omega-3).
• Longevity-first path: NMN + Resveratrol + foundational stack first → layer collagen and the Beauty Stack on top once metabolic-health endpoints stabilise.

Either order works. The cross-collection links: Beauty & Anti-Aging, Foundational Health, Skin Protocol, Longevity Essentials, NAD+ Family, Starter Bundles, All Products.

Two protocols you can start today

Protocol A — Beauty/Skin First (the most-used template)

1. Daily: Beauty & Longevity Stack (or the four bottles separately) — 1 scoop Marine Collagen 5,000 mg + 1 capsule Biotin + 1 capsule Hyaluronic Acid + 1 capsule Liposomal Vitamin C.
2. Timing: morning with breakfast or coffee. Vitamin C cofactor is most relevant when co-administered, so dose collagen with the C in the same meal.
3. Duration: minimum 8 weeks before judging — the Proksch 2014 endpoint window. Many trials don't cross significance until week 8–12.
4. Photo checkpoint: take a same-lighting selfie at day 0, day 28, day 56, and day 84. Subjective recall is unreliable for incremental skin change; photos are the only honest mirror.

Protocol B — Joint / Active-Adult (Clark 2008 / Zdzieblik 2017 template)

1. Daily: 2 scoops Multi Collagen Peptides Powder (= 10 g) + 1 capsule Liposomal Vitamin C + 1 capsule Glycine 1,500 mg.
2. Pre-workout layer (optional): add 1 extra scoop (15 g total) on training days, taken 30–60 minutes pre-workout — this is the Shaw 2017 tendon-collagen-synthesis window.
3. Duration: 12–24 weeks for joint endpoints; bone-density endpoints (König 2018) are 12-month protocols.

Week-by-week timeline — what to expect and when

• Week 1: nothing visible. Plasma Pro-Hyp / Hyp-Gly is loading; fibroblast COL1A1 transcription has begun upregulating but no extracellular collagen has been deposited yet.
• Week 2–3: still nothing visible. Mild gut-comfort changes in some people from the Glycine/Glutamine substrate effect (the bone-broth folklore origin).
• Week 4: first measurable skin-elasticity changes in cuticometer-instrumented trials (Proksch 2014 cohort showed +7% elasticity at week 4). Subjectively: skin "feels" plumper to a careful observer.
• Week 6–8: visible wrinkle-volume reduction (Proksch 2014 reported −20% eye-wrinkle volume at week 8). Hair shedding rate may decrease (delayed signal, still early).
• Week 8–12: hydration changes (Asserin 2015) and dermal-density increases (Schunck 2015) become clearly visible. Nail-growth rate begins to rise (Hexsel 2017 hit +12% by week 24).
• Week 12–24: the Hexsel nail-growth window closes; activity-related joint-pain signals stabilise (Clark 2008, Zdzieblik 2017); cellulite-score reduction (Schunck 2015 6-month endpoint) emerges in moderate-cellulite cohorts.
• Month 6–12: bone-density and tendon-strength endpoints (König 2018, Shaw 2017) — only relevant on the powder/joint-stack/bone-density protocols, not the beauty-only path.
• On stop: Proksch 2014 saw skin-elasticity benefit sustain ~4 weeks past last dose; new cycle of dermal turnover (~28 days) erases the gain over 2–3 months. Maintenance dose 2.5–5 g/d is the norm if you want to lock in.

Common mistakes that wreck a collagen protocol

1. Stopping at week 4. Proksch 2014 showed week-8 endpoint, not week-4. Half the people who quit "because nothing happened" quit before the data says anything would have happened.
2. Skipping Vitamin C. Prolyl-4-hydroxylase is ascorbate-dependent. Shaw 2017 showed cofactor co-administration nearly doubled the tendon-collagen-synthesis effect. Plain dietary C may not be enough — the Liposomal Vitamin C 1,000 mg bypass exists for exactly this reason.
3. Buying "vegan collagen." Plant capsules contain zero collagen (collagen is not a plant protein). They're cofactor stacks (Vitamin C + amino acids) marketed as collagen. Either buy that stack honestly (Liposomal Vitamin C + Glycine) or pair Marine Collagen with the cofactors.
4. Boiling the powder. Sustained boiling denatures bioactive di-/tri-peptide chemistry. Coffee at typical brewed temperatures (60–80 °C) is fine; long stovetop simmer is not.
5. Running below the dose floor. 1–2 g "added to your beverage for hair" is below every positive trial. The minimum effective dose is 2.5 g; the workhorse dose is 5 g.
6. Skipping resistance training when the goal is sarcopenia/tendon. Zdzieblik 2017 was a collagen-plus-resistance-training trial. Collagen alone doesn't build muscle.
7. Continuing UV-overload. Fisher 2002 showed UV upregulates MMP-1 within hours of exposure. You can supplement collagen and out-degrade your own synthesis if you skip sunscreen.

Who collagen fits — and who it doesn't

Collagen is a strong fit for

• Adults 30+ noticing first changes in skin elasticity, fine lines, or skin recovery time.
• Postmenopausal women — both for skin endpoints and bone-density endpoints (König 2018).
• Active adults / athletes with training-related tendon, knee, or finger-joint complaints (Clark 2008).
• Anyone with brittle nails, slow nail growth, or post-pregnancy hair-shedding (Hexsel 2017).
• Older adults concerned with sarcopenia and resistance-training adaptation (Zdzieblik 2017).
• People rebuilding skin/connective tissue after dramatic weight loss, surgery (with surgeon clearance), or extended-illness atrophy.

Less obvious but still a fit

• People in fat-loss phases — collagen is a low-calorie satiety lever (~20 kcal/g) and preserves dermal density during the period when skin is most likely to lose elasticity.
• Glycine-deficient diets (very-low-meat or muscle-only-cut diets where the connective-tissue-rich pieces are skipped) — collagen restores Glycine adequacy.
• Tattooed skin recovery — anecdotal but mechanistically reasonable; tattoo deposition disrupts dermis and the rebuild is collagen-dependent.

Where collagen is not the right answer

• Pregnancy / breastfeeding without practitioner guidance — most trials excluded pregnant cohorts and there's no safety harm signal, but no positive recommendation either.
• Fish allergy — Marine Collagen is contraindicated. Use the bovine-dominant Multi Collagen Complex (eggshell + bovine + chicken sternum components) instead.
• Egg allergy or kosher-pareve restriction — Multi Collagen Complex contains eggshell membrane. Use Marine Collagen if pescatarian-friendly is your boundary, or contact us for source-specific guidance.
• Active gout or chronic kidney disease — collagen contributes to hydroxyproline and overall protein load. Consult your physician on protein intake if you're on a restricted-protein protocol.
• Looking for "anti-aging" without the underlying skin-care basics — collagen does not replace SPF, sleep, hydration, glycaemic control, or stopping smoking. It is a structural supplement, not a fix-everything.
• Vegan strict — collagen by definition is animal-derived. Use the Liposomal Vitamin C + Glycine + Hyaluronic Acid "vegan beauty stack" which uses cofactor pathways without an animal substrate.

Reading list — deeper dives

• Marine vs Bovine Collagen — which works faster for skin, hair, and nails
• Marine Collagen for hair growth: what actually works and what doesn't
• How to choose a collagen supplement — 5 things to check on the label
• Our Science — the framework we use to evaluate every supplement
• Quality & Manufacturing — third-party testing, COAs, GMP
• Ingredient Sourcing — where each raw material comes from and why
• Protocols — the full True Health Protocol stacking framework
• Getting Started — first-bottle decision tree for new customers

FAQ — collagen, answered

Marine or Multi Collagen — which one if I have to pick one?

If your goal is skin / hair / nails, pick Marine Collagen 5,000 mg. Type I dominance + lowest peptide weight = strongest skin signal. If your goal is "skin and joints and bone all at once," pick Multi Collagen — the I/II/III/V/X spread covers cartilage and bone in addition to dermis.

Why is the Beauty & Longevity Stack the Marine Collagen and not the Multi?

Because the Beauty Stack is engineered around skin endpoints first. Marine Type I is the strongest match for that endpoint. If you want a skin-plus-joint stack, pair the Multi Collagen Powder with the same three Beauty Stack cofactors (Vitamin C, biotin, HA) — same logic, broader-type substrate.

Powder or capsules — does it matter?

Mechanistically, no. Bioavailability is essentially the same; both formats are hydrolysed to the same peptide range. Choose by ergonomics: powder = one scoop, no capsule count, easy to push to 10–15 g; capsules = no liquid step, easy to travel.

Can I take collagen in coffee?

Yes. Coffee at brewed temperature (60–80 °C) does not denature the bioactive peptide chemistry. Sustained stovetop boiling at 100 °C for many minutes can — don't simmer your collagen powder in soup.

Do I need to take collagen on an empty stomach?

No. None of the major trials required fasted dosing. Most participants in Proksch 2014, Asserin 2015, and Kim 2018 dosed with breakfast. The only timing detail that matters is co-administration with Vitamin C in the same window.

Should I cycle collagen?

No. None of the cited trials cycled — 8-week, 12-week, 24-week, and 12-month protocols all dosed continuously. Stop benefits regress within ~8 weeks (Proksch 2014 sustained-effect data ran ~4 weeks past last dose; full regression follows the dermal-turnover window).

Does collagen cause weight gain?

No. A 5 g scoop is ~20 kcal — negligible. Some users report mild satiety from collagen's high glycine content, which can reduce caloric intake at the next meal.

Is hydrolysed collagen the same as gelatine?

No. Both come from collagen-rich animal tissues, but gelatine is intact-chain protein (heat-denatured but not enzymatically cleaved), while hydrolysed peptides are pre-cleaved to 2–10 kDa fragments. The bioactive di-/tri-peptides (Pro-Hyp, Hyp-Gly) that drive trial outcomes are released by the hydrolysis step, not by digestion of intact gelatine.

What about "drinkable collagen" with sugar / flavours / sweeteners?

You're paying for a beverage formulation, not a better collagen. Some commercial drinkable formats deliver 2–3 g of collagen with 8–15 g of added sugar — that's a glycation-promoting net wash. Use unflavoured powder in your own beverage and skip the sugar.

How much is too much?

Trials have safely run 15 g/d (Zdzieblik 2017, Shaw 2017) and 20 g/d in athlete cohorts without adverse-event signals. The practical ceiling is gut tolerance and protein-budget context, not a toxicology limit.

Can men take collagen?

Yes — Clark 2008 (athletes), Zdzieblik 2017 (men 65+), Shaw 2017 (men, tendon). Skin endpoints are dominantly female-cohort trials but mechanism is sex-independent.

Will collagen help with stretch marks?

Mechanistically reasonable (stretch marks are dermal collagen disruption); evidence base is thin and indirect. Consistent 5 g/d for 12+ weeks with the Beauty Stack cofactors is the most-defensible try. Topical interventions (retinoids, microneedling) have stronger direct evidence for stretch-mark cosmetic improvement.

Can I take collagen with NMN, resveratrol, fisetin, or my longevity stack?

Yes — there is no known interaction. Mechanistically the longevity stack and the beauty stack target different pathways (NAD+ / sirtuins vs collagen synthesis / dermal matrix) and several papers (Asai 2017 fibroblast mechanism + López-Otín 2013/2023 hallmarks framework) suggest the two are complementary rather than redundant. Cross-link: NAD+ Family, Longevity Essentials.

Is the marine collagen mercury-tested?

Yes — every batch is third-party tested for heavy metals (lead, arsenic, cadmium, mercury) by an ISO-17025 lab; COAs are available on request via Contact. Source fish are wild-caught, low-trophic-level (skin/scale-derived rather than predator-fish flesh), which keeps the heavy-metal burden naturally low pre-test. Detailed protocol on Quality and Ingredient Sourcing.

Is this hydrolysed collagen halal / kosher?

Marine Collagen is fish-derived (kosher-pareve compatible, halal-compatible). Multi Collagen contains bovine and chicken — not certified kosher/halal at this time. Email support for source-specific certificate questions.

How does the True Health Protocol guarantee work for collagen?

30-day satisfaction guarantee on every collagen SKU. If your bottle isn't working for you, email support — full details on Guarantee and Refund Policy.

Where to next

If collagen is your starting point, layer on the cofactors next: Liposomal Vitamin C, Biotin 10,000 mcg, Hyaluronic Acid + Vitamin C. From there, the natural extensions are Beauty & Anti-Aging (the broader skin/hair/nails category), Skin Protocol (the curated skin-only stack), Longevity Essentials (NMN, resveratrol, the foundational longevity layer), Foundational Health (D3+K2, magnesium, omega-3), and Starter Bundles. Or jump to the full Protocols page for stacking frameworks, Getting Started for a first-bottle decision tree, and Our Science for the trial-evaluation methodology behind every choice in this collection.

None of the statements on this page have been evaluated by the U.S. Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before starting any supplement, particularly during pregnancy, lactation, or while taking prescription medication.