124 citations
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July 2017 in “eLife” Type XVII collagen helps control skin cell growth and could be a target for anti-aging treatments.
60 citations
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October 2020 in “Journal of Controlled Release” Curcumin nanocrystals in simple gels effectively penetrate hair follicles, but humectants can reduce this efficacy.
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January 2016 in “Journal of Cutaneous and Aesthetic Surgery” Injecting platelet-rich plasma during hair transplant surgery improves hair regrowth rate, speeds up skin recovery, and enhances hair quality.
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September 2019 in “Clinical, Cosmetic and Investigational Dermatology” Light therapy can stimulate hair growth and is more effective when started early, but more research is needed on its long-term effects and optimal use.
30 citations
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August 1993 in “PubMed” IL-1 alpha stops hair follicle growth and hair production.
24 citations
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March 2011 in “British Journal of Dermatology” Men with hair loss have more DNA changes in back-of-head hair follicles, possibly protecting them from thinning.
22 citations
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July 2019 in “PLOS ONE” Skin lymphatic vessels are essential for hair growth.
16 citations
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February 2015 in “Photochemistry and Photobiology” Hair acts as a significant natural sun barrier, with protection increasing based on hair density, thickness, and melanin presence.
15 citations
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May 1987 in “Fundamental and applied toxicology” SMR-2 and SMR-6 are much more toxic than retinoic acid, causing severe side effects.
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September 2017 in “Oncotarget” A certain signaling pathway in mice, when increased, causes hair to gray by depleting the cells that give hair its color.