32 citations
,
May 2015 in “Journal of Investigative Dermatology” Mice without collagen VI have slower hair growth normally but faster regrowth after injury.
2 citations
,
May 2011 in “Pigment Cell & Melanoma Research” Collagen XVII is crucial for preventing hair and pigmentation loss by maintaining melanocyte stem cells.
May 2024 in “Animal genetics” A cat's poor wound healing was linked to a genetic deletion in the COL5A1 gene.
20 citations
,
July 1987 in “Development Genes and Evolution” 22 citations
,
May 2004 in “Tissue Engineering” PGA fiber-reinforced collagen sponges improve hair growth and skin structure.
14 citations
,
February 2011 in “Experimental dermatology” A protein called COMP is part of the connective tissue in normal human hair follicles and may be important for hair health.
September 2017 in “Journal of Investigative Dermatology” Loss of COL17A1 causes hair follicle stem cells to age and leads to hair loss.
16 citations
,
February 2007 in “Plastic and Reconstructive Surgery” Keratinocytes show more TGF-β system activity and collagen production as they age, which might affect wound scarring.
June 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” The RHC complex with nicotinamide promotes hair growth and health.
7 citations
,
December 1991 in “Annals of the New York Academy of Sciences” Dermal papillae are crucial for hair growth and maintenance.
9 citations
,
January 2022 in “Theranostics” Collagen XVII is important for skin aging and wound healing.
December 2025 in “ACS Applied Bio Materials” The aloe-collagen dressing speeds up wound healing effectively.
January 1993 in “Di-Si Junyi Daxue xuebao” Type III collagen increases in recovering guinea pig skin, aiding tissue stability.
January 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Collagen supplements may improve skin and joint health but have inconsistent effects on blood sugar and heart health.
283 citations
,
February 2011 in “Cell stem cell” COL17A1 is crucial for preventing hair graying and loss by supporting hair and pigment stem cells.
June 2026 in “Journal of Cosmetic Dermatology” Microneedle delivery of a special collagen shows promise for treating hair loss.
June 2023 in “Research Square (Research Square)” Hyaluronic acid and polycaprolactone improve skin regeneration, with polycaprolactone having a stronger effect on healing and tissue repair.
34 citations
,
September 2020 in “Clinical, cosmetic and investigational dermatology” Hyaluronic acid increases collagen synthesis safely, while poly-L-lactic acid may cause complications by affecting fibroblasts.
July 2026 in “Macromolecular Bioscience” Sulfated glycosaminoglycans from Acipenser baerii cartilage improve wound healing and fibroblast function.
September 2024 in “Journal of the American Academy of Dermatology” PRO-C22 can help diagnose and monitor the severity of hidradenitis suppurativa.
January 2026 in “International Journal of Peptide Research and Therapeutics” Collagen supplements improve hair health and are safe.
1 citations
,
January 2005 in “Experimental Dermatology” MC-1R in skin cells may influence inflammation and collagen production.
10 citations
,
January 2024 in “Dermatology Research and Practice” Taking a collagen and vitamin C supplement improves skin and hair health.
4 citations
,
February 1983 in “Journal of periodontology” A liquid protein diet significantly affected young rats' body weight but had little effect on their gingival collagen metabolism.
11 citations
,
August 1995 in “Journal of Investigative Dermatology” January 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Collagen supplements may modestly improve skin and joint health, but effects on metabolism and blood sugar are inconsistent.
11 citations
,
April 2020 in “Nutrafoods - International Journal on Nutraceuticals, Functional Foods and Novel Foods” Taking Bioactive Collagen Peptides increases hair thickness.
July 2025 in “Journal of Investigative Dermatology” Collagen scaffolds in cell therapy can transform skin to be more resilient and pressure-responsive.
December 2025 in “PubMed” Fish collagen peptide may boost hair growth and health.
26 citations
,
January 2015 in “PubMed” Collagenase IV helps control hair growth by affecting certain growth factors.