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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 study found that fish scale collagen peptide significantly promoted wound healing in mice, with the <1 kDa fractions enhancing collagen synthesis and reducing inflammation, suggesting potential clinical benefits.

In this study, researchers found that supramolecular peptide self-assembling materials derived from Pacific oysters exhibit promising effects for skin wound healing in vitro and in vivo, demonstrating procoagulant, antioxidant, anti-inflammatory, and regenerative properties that suggest potential as a natural treatment option.

This study reported that bioactive peptides from skin collagen, obtained through selective hydrolysis, improve skin collagen synthesis and remodeling, while inhibiting its breakdown by metalloproteinases, showing benefits such as enhanced skin hydration, elasticity, healing, and hair restoration, without associated adverse effects.

This study reported that newly developed RADA16-I peptide hybrids, with active motifs like GHK and KGHK, demonstrated improved wound healing in a mouse skin injury model without cytotoxicity, suggesting they might be effective scaffolds for tissue engineering and regeneration.

In this study, researchers developed a self-assembling hydrogel called RADA-PDGF2 and found it to accelerate wound closure in a mouse model due to its pro-proliferative and pro-migratory properties, without causing cytotoxicity or immunogenicity.

This source provides a review of patents on the use of fish collagen peptides in wound care, highlighting benefits like skin hydration, scar repair, and antiaging, while emphasizing the need for further clinical research to validate these applications.

In this study, synthesized composite nanocarriers containing ribose and peptides demonstrated enhanced transdermal delivery, improved uptake by skin cells, promoted cell proliferation, enhanced antioxidant enzyme activities, and increased autophagy, suggesting a potential for more effective skin anti-aging treatments.

This study systematically analyzed the molecular and cellular mechanisms of wound healing and assessed the market potential for wound healing products based on natural proteins, projecting significant growth by 2033.

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.

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 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 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.

In this study, researchers applied Strat-M® membrane to assess the in vitro transdermal properties of collagen peptides, finding a high correlation with results from mouse skin and suggesting that Strat-M® can effectively replace excised mouse skin in transdermal experiments.

This study found that both marine and bovine collagen peptides may help prevent hair loss by supporting epithelial hair follicle stem cell functions, with marine peptides maintaining hair in the growth phase and bovine peptides increasing stem cell presence in hair follicle regions.

This study found that collagen peptides from Mozambique tilapia significantly promoted hair regrowth and increased the proliferation of hair growth factors in vitro and in vivo, suggesting potential as supplements for hair loss prevention.

In this mouse study, researchers found that orally administered low-molecular-weight fish collagen peptides significantly improved hair regrowth by both enhancing growth-promoting pathways and reducing inhibitory mechanisms.

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 literature review on neurocosmetics found that both nature-derived peptides and synthetic molecules can improve skin concerns like aging and pigmentation, while also promoting emotional well-being; however, gaps in long-term efficacy and personalized approaches remain.

This review suggests that although hydrolyzed collagen peptides with certain supplements may improve skin elasticity and joint function, evidence for collagen's anti-aging and regenerative benefits remains inconsistent.

In this study, APC collagen peptides were observed to enhance hair elasticity and gloss in human hair follicles by increasing amino acid and lipid component levels, suggesting their potential benefits for improving hair qualities.

This study found that the peptide TSN6 increased epidermal thickness and promoted hair follicle formation in dermal–epidermal composites grafted onto nude mice, with TSN6-treated composites showing more hair follicles and retained grafts compared to control groups.

This research observed that nanoliposomes delivering a combination of bioactive peptides significantly promoted hair growth in vitro and in vivo by enhancing the proliferation and function of hair growth-targeted cells in C57BL/6 mice, suggesting a promising approach for treating androgenetic alopecia.

This study found that MDP hydrogel significantly accelerated wound healing and improved tissue formation in diabetic mice compared to a standard clinical hydrogel and control buffer.

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 review highlights the potential of marine-derived nutraceuticals for treating skin and hair disorders, focusing on Viviscal, a supplement shown to be safe and effective in enhancing hair growth by improving cellular function and strengthening hair.

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 comprehensive review, researchers reported that macromolecules like type I collagen, keratin, and ceramides enhance hair health by improving follicular function and increasing hair density, strength, shine, and resilience, as shown in various in vitro, animal, and human studies.

This review discusses plant-based alternatives to retinoids for dermal antiaging and hair health, highlighting roles for cytokinins and phytoestrogens and reports no new results.

This review examines recent advancements in electrospun nanofibers for wound healing applications, but reports no new experimental results, highlighting their potential in sutures, dressings, and skin regeneration.