Understanding Hair Growth: The Science Behind Hair Follicles, Nutrients, and Androgenic Alopecia
Hair is a component of the integumentary system and extends downward into the dermal layer, where it sits in the hair follicle. Humans have approximately five million hair follicles, which offer protection from cold and UV radiation, produce sebum, and can have a significant psychological impact when growth or structure is unbalanced. The Anatomy of Hair: Shaft, Follicle, and Bulb Each hair has two distinct parts (i) a hair shaft which is a thin, flexible, cylindrical, visible part of hair above the epidermis (non- living part) and (ii) a hair follicle located below the epidermis (living part) which enlarges at the….