unveiling the secrets of a healthy scalp a microscopic journey into hair follicle function and scalp trichology

hair follicle scalp health trichology growth cycle anagen catagen telogen dermal papilla sebum production blood supply care hygiene hydration nutrients healthy loss prevention conditions shedding anatomy microscopic skin structure phases sebaceous glands shaft development inflammation dandruff seborrhea stimulation treatments factors disorders density thickness microbiome support regrowth follicles maintenance mechanisms