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Collagen Peptides

Also known as Hydrolyzed collagen, Collagen protein

What it is: Partially digested collagen protein rich in glycine, proline, and hydroxyproline
What it does: Provides amino acids that support skin, joint, and connective tissue matrix
Status: Widely used supplement
Evidence: Moderate. Moderate human data.
Uses: Skin elasticity; joint comfort; connective tissue support

Caution. Generally well tolerated; benefits may depend on adequate vitamin C and protein intake.

Summary

Collagen peptides are hydrolyzed collagen proteins that supply glycine, proline, and hydroxyproline, amino acids important for skin, joint, and connective tissue matrices. Supplementation has been associated with improvements in skin elasticity and joint comfort in several trials. Effects are supportive rather than curative and work best alongside adequate total protein and micronutrients.

Checked Jul 19, 2026.

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This entry summarises published information in plain language. It is not medical advice, a dosing recommendation or a substitute for a qualified healthcare professional. Many peptides are not approved for human use, and legal status varies by country. Check anything you rely on against primary sources.