7 citations
,
January 2011 Collagen XVIII is crucial for maintaining tissue structure and function in the brain, kidneys, and hair.
April 2026 in “Diagnostics” Collagenous gastritis is a rare condition causing chronic diarrhea and weight loss, often misdiagnosed due to nonspecific symptoms.
11 citations
,
June 2019 in “Tissue & Cell” Hair stem cells produce a protein called COL17A1 that plays a key role in their development and is linked to hair thinning and baldness.
9 citations
,
January 2022 in “Theranostics” Collagen XVII is important for skin aging and wound healing.
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.
15 citations
,
October 1999 in “British Journal of Dermatology” Collagen remodeling is more active during hair growth stages.
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.
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.
January 2025 in “Regenerative Biomaterials” A dissolving microneedle patch with collagen XVII effectively promotes hair regrowth in androgenic alopecia.
June 1999 in “Connective tissue” 
May 2024 in “Animal genetics” A cat's poor wound healing was linked to a genetic deletion in the COL5A1 gene.
1 citations
,
May 2017 in “Asian journal of medical sciences” The dietary supplement significantly improved skin, nails, and hair in older adults.
1 citations
,
January 2008 in “Aesthetic dermatology” 28 citations
,
April 1988 in “Archives of Dermatological Research” 
July 2023 in “British journal of dermatology/British journal of dermatology, Supplement” Skin tumors with CYLD cutaneous syndrome show more NF-κB activity and less organized collagen.
1 citations
,
March 1998 in “Journal of Dermatological Science” 
November 2025 in “Quality in Sport” Collagen supplements improve skin, hair, and nails, especially with vitamin C and minerals.
November 2024 in “Journal of Investigative Dermatology” Changes in hair follicle structure may help diagnose and monitor alopecia.
15 citations
,
December 2013 in “Clinical Cosmetic and Investigational Dermatology” MAGP-1 decreases with age, leading to weaker, sagging skin.
September 2016 in “Journal of dermatological science” Collagen XVII is crucial for skin cell growth and nail health.
April 2023 in “International journal of molecular sciences” People with Collagen VI-related myopathies may often have hair loss and scalp issues.
9 citations
,
January 1966 March 2016 in “Benha Veterinary Medical Journal” Type XIX Collagen is present in specific skin and hair cells during development.
January 2024 in “Archives of Biological Sciences (Beograd)” AP collagen peptides may help hair grow better and become stronger.
10 citations
,
January 2024 in “Dermatology Research and Practice” Taking a collagen and vitamin C supplement improves skin and hair health.
November 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Scientists made a mouse that shows how a specific protein in the skin changes and affects hair growth and shape.
November 2024 in “Journal of Functional Foods” AP collagen peptides improve hair elasticity and gloss.
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.
July 2024 in “Experimental Dermatology” AP collagen peptides help hair grow and improve hair health.
November 2023 in “International Journal of Pharmaceutics” New hair loss treatment using marine collagen and dissolvable needles improves hair growth.