Supplementary Material for: Effects of Food-Derived Collagen Peptides on the Expression of Keratin and Keratin-Associated Protein Genes in Mouse Skin

This study found that oral collagen peptides increased expression of genes associated with epidermis development and the hair cycle in hairless mice, providing insights into their potential skin benefits.

In this study, oral collagen peptides increased certain gene expressions related to epidermis development and the hair cycle in hairless mice skin, suggesting potential links to hair health.

This study discusses the effects of collagen hydrolysates and the dipeptide Pro-Hyp on gene expression related to hair and epidermis development in mouse skin and reports no new clinical results.

This study found that collagen and its compound may have antioxidant effects and reduce melanin in guinea pigs, while increasing skin moisture and hydroxyproline content in mice.

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.