TLDR Eating collagen peptides may help with skin and hair growth.
In a study from 2015, researchers explored the impact of orally administered collagen peptides (CP) on skin gene expression in hairless mice and the effects of a collagen-derived dipeptide, prolyl-hydroxyproline (Pro-Hyp), on gene expression in a coculture of mouse skin cells. After 6 weeks of CP administration, there was an increase in the expression of genes related to epidermis development and the hair cycle, specifically Krtap and Krt genes. Additionally, Pro-Hyp was found to increase the expression of certain keratin-associated protein genes in keratinocytes when cocultured with fibroblasts, indicating that fibroblasts are necessary for this effect. This study suggests a connection between CP intake and the hair growth cycle.
12 citations,
May 2014 in “International Journal of Molecular Medicine” Chrysanthemum zawadskii extract helps hair grow by stimulating hair cells.
42 citations,
March 2014 in “European Journal of Pharmacology” Ginsenoside F2 from ginseng may increase hair growth better than standard treatments by affecting cell growth signals.
300 citations,
August 2012 in “Seminars in Cell & Developmental Biology” The conclusion is that certain cell interactions and signals are crucial for hair growth and regeneration.
221 citations,
July 2012 in “Proceedings of the National Academy of Sciences of the United States of America” BMAL1 controls skin cell growth and UV damage risk, peaking at night.
165 citations,
December 2004 in “Differentiation” BMP signaling is crucial for skin and hair growth.
64 citations,
March 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” GPRC5D is linked to the formation of hair, nails, and certain tongue areas.
October 2022 in “International Journal of Molecular Sciences” Fish collagen peptides can significantly promote hair growth.
2 citations,
August 2023 in “Marine drugs” Collagen from tilapia scales may improve hair and skin health by reducing stress and inflammation and encouraging hair growth.
1 citations,
May 2017 in “Asian journal of medical sciences” The dietary supplement significantly improved skin, nails, and hair in older adults.
1 citations,
March 2022 in “IntechOpen eBooks” Collagen is crucial for health and treating certain diseases, and supplements can improve skin, nails, and hair conditions.
35 citations,
October 2017 in “Trends in Molecular Medicine” Mice with enhanced regeneration abilities may help develop new regenerative medicine therapies.
