June 2019 in “Journal of evolution of medical and dental sciences” Dermoscopy is useful for tracking alopecia areata treatment, with yellow dots and new vellus hairs being good indicators of hair regrowth.
September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” The document concludes that individualized treatments for hair issues are effective, certain hair changes can indicate neurocutaneous diseases, specific lotions improve skin health, laser hair removal works but needs more study on long-term effects, men's cosmetics are diverse, peeling is effective but can have side effects, and facial pigmentation is often due to overactive skin cells.
Dermoscopy is useful for diagnosing hair loss patterns in dogs.
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July 2016 in “Veterinary Dermatology” Dermoscopy is useful for diagnosing hair loss patterns in dogs.
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January 2018 in “International Journal of Trichology” Circle hairs are harmless, spiral-shaped body hairs that don't need medical treatment.