PMEE may help reverse greying hair by boosting melanin production.
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January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Applying a specific inhibitor lightens skin and hair color.
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April 2005 in “Experimental Dermatology” Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.
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May 2012 in “PloS one” Low ERCC3 gene activity is linked to non-pigmented hair growth.
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September 2018 in “Neurobiology of Disease” Finasteride and dutasteride reduce unwanted movements from Parkinson's disease treatment by normalizing certain brain signals.