Does Collagen Peptides Help With Multiple RCTs demonstrate that oral collagen peptide supp...?
Moderate EvidenceEvidence Summary
Multiple RCTs demonstrate that oral collagen peptide supplementation (2.5–10 g/day for 8–12 weeks) significantly improves skin hydration, elasticity, dermal density, and wrinkle appearance in healthy adults (PMID: 41311286, 40935395, 41588262, 40518844). A placebo-controlled trial found 5 g/day BCP reduced corticosteroid rescue medication use and improved skin barrier function in moderate atopic dermatitis (PMID: 41758763). Proposed mechanisms include upregulation of TGF-β and Klotho, which may stimulate endogenous collagen synthesis and extracellular matrix remodeling (PMID: 41588262).
Source: auto-research
Effective Dose
2.5–10 g daily for skin outcomes; 5 g/day studied for atopic dermatitis