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This study found that a newly synthesized peptide from fermented Trapa japonica extract significantly promoted wound recovery and showed antiaging effects in skin cells and a clinical study, suggesting potential as a cosmetic product.

This study found that low molecular weight collagen peptide from fish may promote hair growth in both human cells and mice by activating the Wnt/β-catenin signaling pathway.

This study observed that Fraser’s dolphins exhibit remarkable skin healing abilities, with type I collagen prevalent in normal skin and type III collagen emerging during early wound healing before returning to normal configuration, suggesting insights for human clinical wound management.

This study compared the effectiveness of different thread types in improving collagen profiles in UVB-exposed aging model rats, finding that PCL threads were more effective than PDO and PLLA in enhancing dermal collagen characteristics.

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.

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 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.

In this study, recombinant type III collagen was found to promote fibroblast proliferation and migration, suggesting potential anti-aging and repairing effects, although it was only effective in significantly inhibiting IL-6, not TNF-α, secretion.

In this clinical study, a vegan collagen builder (VEGCOL™️) was shown to safely and effectively improve hair growth, skin smoothness, wrinkle reduction, and joint pain relief in adults, with enhancements varying by dose over a 60-day period.

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 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.

This study demonstrated that alkali-modified Kapok fiber significantly enhances the adsorption of collagen, suggesting its potential application in collagen-based dressings.

This study found that oral collagen peptides increased the expression of genes related to epidermal and hair cycle development in hairless mouse skin.

This study found that a new transdermal drug delivery system using globefish skin collagen peptides and dissolving microneedles effectively promoted hair regrowth in mice with androgenetic alopecia by reducing inflammation and enhancing vascularization.

This study found that collagen oligopeptides from puffer skin may reduce skin melanin and increase hydroxyproline content in guinea pigs, suggesting potential skin whitening and anti-aging effects.

This study reported that atelocollagen enhances collagen synthesis and reduces oxidative stress in aged skin by increasing glycine uptake through GlyT1, resulting in improved skin elasticity and collagen density in aged mice, with effects superior to glycine alone.

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 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.

This article explores the potential mechanisms by which polydeoxyribonucleotide (PDRN) could improve skin quality, slow aging, and enhance skin regeneration, but reports no new clinical findings.

In this study, Pilopeptan® Intensive, a nutritional supplement containing hydrolyzed collagen, Group B vitamins, and zinc, was found to significantly improve hair parameters in telogen effluvium patients, with sustained benefits observed posttreatment, although mild side effects were reported by some participants.

This study found that collagen sponges with polyglycolic acid fibers support proper skin and hair follicle restructuring, suggesting potential usefulness for hair reconstitution research and clinical applications.

In this study, adults with mild-to-moderate hair damage taking GPVGPS Collagen® daily for 24 weeks showed significant improvements in hair luster, strength, thickness, and density compared to placebo, with no safety concerns reported.

This study demonstrates that bacteria contribute to hair follicle neogenesis after skin wounding through IL-1R1 signaling in keratinocytes.

This randomized, double-blind, placebo-controlled study found that a supplement containing hydrolysed collagen and vitamin C (Absolute Collagen) improved skin, scalp, and hair over 12 weeks when taken daily or every other day.

In this study, Bioactive Collagen Peptides supplementation increased hair follicle cell proliferation and improved hair thickness in healthy women over 16 weeks compared to a placebo.

This chapter discusses various aspects of collagen, proposing "extended collagen carential disease" as a new concept tied to nutritional deficiencies, notably Vitamin C's role in maintaining collagen health.

In this review, various expression systems for synthesizing recombinant collagen are compared, highlighting their efficiency, modification capabilities, and cost. Key purification techniques are also analyzed, and challenges like reducing R&D costs and improving safety protocols are identified.

This research found that hyaluronic acid increased cell proliferation and type I collagen more effectively than poly-L-lactic acid in both human fibroblast cultures and rat dermis.

This study reports that salmon DNA is emerging as a promising ingredient in skincare and aesthetics, with research highlighting its potential to improve skin health and appearance through anti-aging, hydration, and regenerative properties.