Collagen Peptides
- Effective dose
- 2.5–10 g
- Evidence
- 3/5· Moderate
Last updated June 1, 2026
What it is
Collagen peptides are short chains of amino acids made by breaking down (hydrolyzing) collagen from animal sources into an easily absorbed form. Once digested they supply amino acids like glycine and proline and may signal the body to support its own connective-tissue production.
Benefits
Pooled trials report improvements in skin hydration, elasticity, and wrinkle appearance at roughly 2.5-10 g/day, with a typical dose around 4 g/day. The evidence is tempered by frequent industry funding and lower study quality, so the size of the real-world effect is uncertain.
When to take it
Can be taken any time of day, mixed into liquids or food; consistent daily use over 8-12 weeks is typical in studies.
Side effects
Generally well tolerated; mild digestive complaints such as fullness or heartburn are occasionally reported.
Sources
Products containing Collagen Peptides
No products in our database contain this ingredient yet.