Afro Hair Curvature Afro Hair Curvature describes the tight, spring-like coils and distinctive curl patterns seen in afro-textured hair, which are produced by...
Angle and Direction Angle and Direction describes how individual hairs are oriented as they exit the skin and the path they take across...
Anagen Phase The anagen phase is the active growth stage of the hair cycle during which cells in the hair bulb divide...
Alopecia Areata Alopecia Areata is an autoimmune disorder in which the immune system mistakenly attacks hair follicles, producing discrete, round patches of...