May 2021 in “Zbalansovane prirodokoristuvannâ” Some shampoos have harmful ingredients that can cause health problems, but these are needed for the shampoos to work properly.
Pseudofolliculitis causes painful bumps and dark spots from shaving, especially in people with curly hair, and can be treated by changing shaving habits and using specific topical treatments.
April 2021 in “Indian Journal of Animal Research” Goat skin has collagen, elastic, and reticular fibers, with hair follicles increasing in depth as goats age.
April 2021 in “Sri Lanka Journal of Diabetes Endocrinology and Metabolism” Giant pituitary macroadenomas causing Cushing disease are rare and may need extra treatment if surgery fails.
January 2021 in “Dermatologic Therapy” 
November 2020 in “Ukraïnsʹkij žurnal sučasnih problem toksikologìï” Minoxidil lotion may harm male reproductive health.
November 2020 in “Acta Medica Bulgarica/Acta medica Bulgarica” The document concludes that treatment improved skin lesions but not scalp hair loss in two patients with Graham-Little-Piccardi-Lassueur syndrome.
November 2020 in “Dermatologic Therapy” 
September 2020 in “Benha Journal of Applied Sciences” Protein hair straighteners damage the hair more than hair dyes.
September 2020 in “Benha Journal of Applied Sciences” Patients with Alopecia Areata have lower levels of zinc and biotin than healthy individuals.