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Peptides, explained clearly and honestly.

Peptides are short chains of amino acids, the same building blocks as proteins. Some are approved medicines, such as insulin and semaglutide. Many others, BPC-157 among them, have only cell or animal data. Every guide here says which kind of evidence stands behind a claim. Read the basics →

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Illustration for Collagen Peptides: What Science Actually Says About Skin
FeaturedSkin & Collagen3 min readOctober 22, 2026

Collagen Peptides: What Science Actually Says About Skin

Hydrolyzed collagen is one of the best-selling supplements in the world. A look at what studies show and what is marketing.

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