This subject material sometimes delves into the organic composition, construction, and performance of each hair and scalp. It probably covers matters corresponding to hair development cycles, the completely different layers of the hair shaft (cuticle, cortex, medulla), the chemical make-up of hair (keratin, melanin), and the assorted glands and tissues throughout the scalp that contribute to hair well being. An instance may be an in depth examination of the function of sebaceous glands in producing sebum, which lubricates the hair and scalp.
Understanding the underlying biology and physiology is essential for creating efficient hair care practices, diagnosing and treating scalp problems, and formulating beauty merchandise that improve hair look and well being. Historic context could embody the evolution of hair care practices and scientific discoveries associated to hair and scalp biology. This data base informs present approaches in dermatology, cosmetology, and associated fields.