November 2025 in “Quality in Sport” This review found that hydrolyzed collagen supplementation, particularly marine collagen, improves skin hydration, elasticity, and density while strengthening hair and nails, especially when paired with vitamin C and trace elements; however, more studies are necessary to evaluate long-term efficacy across different sources and demographics.
This review reports that oral collagen peptide supplements may improve skin elasticity, hydration, and wrinkle appearance while also supporting hair and nail health and wound healing, but emphasizes the need for longer, high-quality studies due to current research limitations and variability in findings.
January 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This review reports that collagen peptides provide consistent, modest benefits for skin hydration and elasticity, with variable effects on body composition and cardiometabolic risk markers, though some outcomes remain inconsistent due to trial heterogeneity.
January 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This review reports that collagen peptides consistently provide modest improvements in skin hydration and elasticity and varying benefits for body composition and cardiometabolic markers, although effects on blood sugar control are less consistent; variations in source, dose, and study definitions limit generalizability.
March 2026 in “Food, Nutrition and Health.” This review highlights research reporting that oral collagen peptide supplements are effective in enhancing skin elasticity, hydration, and reducing wrinkles, although results vary across studies. Oral supplementation was generally well-tolerated, and further investigation is needed to optimize formulations and explore topical application challenges.
