Thyroid problems can cause hair loss and change hair texture.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
48 citations,
September 1993 in “The journal of experimental zoology/Journal of experimental zoology” Melatonin treatment started hair growth in goats and affected their hormone levels.
Low-level laser therapy combined with Neoptide improved hair regrowth better than either treatment alone in rats.
4 citations,
April 2002 in “Medical Hypotheses” Hormones cause hair loss by affecting cell growth and weakening cell attraction.
26 citations,
February 2022 in “Journal of pineal research” Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.
11 citations,
August 2018 in “Asian-Australasian journal of animal sciences” Short daily photoperiods improve cashmere production in Inner Mongolia white cashmere goats.