Collagen peptides

Collagen fragments obtained by enzymatic hydrolysis, with a molecular weight low enough (1,000 to 5,000 Da) to be absorbed intestinally. Unlike native collagen, hydrolysed collagen peptides are bioavailable and can stimulate endogenous collagen synthesis by dermal fibroblasts. Randomised clinical trials have shown improvement in skin hydration, elasticity and wrinkle reduction after 8 to 12 weeks of supplementation at 2.5 to 10 g per day. Quality depends on source (bovine, marine, porcine), hydrolysis method and amino acid profile, particularly hydroxyproline and glycine.