Marine collagen from fish skin/scales is predominantly Type I collagen (same type in human skin — 80% of skin collagen). Advantages over bovine: (1) smaller peptide size (lower molecular weight = better absorption); (2) no BSE/prion risk; (3) higher hydroxyproline content. A 2018 study found marine collagen peptides (5g/day, 12 weeks) increased skin hydration by 35% and reduced wrinkle depth by 13%. Peptan® (marine) and Naticol® are branded marine collagen peptides. Higher cost than bovine but potentially better bioavailability for skin. --- *Reviewed by the Dose AI Research Team and Clinical Advisory Board* *Last updated: 2026-04-06*
Based on independent third-party laboratory analysis
Category pass rate: ~85%. Most collagen supplements are the same hydrolyzed peptides at wildly different prices.
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.