Consumer Peptides
Collagen peptides and cosmetic peptide skincare, the legal shelf, evidence-graded.
The peptides anyone can buy at a grocery store: hydrolyzed collagen supplements and cosmetic peptide skincare. Same Evidence Ledger rigor as the research compounds, applied to the consumer shelf, with honest buying guidance where the evidence supports a product category at all.
- Posts live
- 13
- Planned in hub
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The compound profile.
Compound profileCollagen Peptides: What the Trials Show
What hydrolyzed collagen actually is, how the peptides survive digestion, and what the randomized trials show for skin, joints, bone and muscle. The evidence, graded the way we grade research compounds.
Read the profileSide by side, by evidence tier.
The 8 Best Collagen Peptides, Ranked
Eight collagen peptide powders compared on dose per serving, collagen type, third-party testing, and price per serving. Ranked from the ingredient panel and the published trials, before any link was attached.
The 8 Best Peptide Serums, Ranked
Eight peptide serums and creams compared on which peptides they actually contain, what published evidence sits behind each one, and what you pay per millilitre. Ranked from the INCI list, not the marketing.
Vital Proteins Collagen Peptides Review
The best-selling collagen powder in America, audited line by line: what 20 g of bovine peptides does and does not have evidence for, where the label is honest, what it lacks, and the two alternatives worth cross-shopping.
The Best Collagen for Women, Ranked
Most collagen trials enrolled women, so this is the rare category where 'for women' is not just marketing. Five powders ranked for the endpoints women actually search: skin elasticity, bone density after menopause, and hair.
The terms and mechanisms underneath.
- Explainer11 min
Collagen Peptides Benefits: Each Claim, Graded
Skin, joints, bone, muscle, hair, nails, gut: every claimed benefit of collagen peptides, graded against the randomized trials the way we grade research compounds. Some earn their tier. Most do not.
- Explainer10 min
Do Collagen Supplements Work? An Honest Verdict
The skeptic says collagen is digested to amino acids and the trials are industry-funded. The believer quotes a meta-analysis. An honest adjudication of both cases, claim by claim.
- Explainer9 min
How Much Collagen Per Day? The Trial Doses
Not a prescription: a table of what the published studies actually dosed, endpoint by endpoint, from 2.5 g for skin to 15 g in the muscle protocols, and why more is not better.
- Explainer10 min
Copper Peptides for Skin: The GHK-Cu Evidence
GHK-Cu is the best-studied peptide in cosmetics, and the most mythologized. What the topical literature actually shows, how it differs from the research-injection discourse, and how to use it without wasting it.
- Explainer9 min
Marine Collagen: Does It Beat Bovine?
Fish-skin collagen is pitched as better absorbed, better for skin, and more sustainable. One of those claims holds up under the literature. The chemistry, the trials, and who should actually choose marine.
- Explainer9 min
Matrixyl & Matrixyl 3000, Decoded
Matrixyl, Matrixyl 3000 and Matrixyl synthe'6 are three different peptide technologies wearing one trade name. Which is which on an ingredient list, what the published evidence supports, and which products carry a real dose.
- Explainer8 min
Argireline: Does Topical Botox Work?
Acetyl hexapeptide-8 is sold as a needle-free Botox alternative. The one study behind the claim, what concentration actually matters, and where it fits next to peptides with better evidence.
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