Human Hair Melanins: What We Have Learned and Have Not Learned from Mouse Coat Color Pigmentation

Topical application of Eriodictyon angustifolium extract can prevent and reverse age-related beard graying and darken gray hair by increasing melanin production. Sterubin, a component of the extract, also promotes hair pigmentation and protects cells from DNA damage.

The conversation discusses potential causes of pigmentation around hair follicles, suggesting sebum buildup, autoimmune conditions, or dermatitis. Treatments mentioned include finasteride, dutasteride, and an anti-inflammatory diet, with a recommendation to consult a doctor for a proper diagnosis.

Exosomes combined with fractional picosecond laser treatment were effective in treating androgenetic alopecia and promoting repigmentation in white hair patches. The role of exosomes in hair repigmentation, particularly in conditions like poliosis, is not well-studied.

Fatty acid metabolic signaling can activate epithelial stem cells for hair regeneration. Oleic and palmitoleic acids showed the best results, but practical application on humans remains uncertain.

A 25-year-old male seeks advice on reversing white hair to black. Suggestions include using hair dye, peptides like TB-500 and BPC-157, and finasteride for hair growth.

The post discusses the theory that melatonin could reverse grey hair by regulating certain enzymes. However, users who have taken melatonin reported no effect on preventing or reversing grey hair.