Hair Loss and the Applied Techniques for Identification of Novel Hair Growth Promoters for Hair Re-Growth

Hairs are the characteristic covering of mammalian skin, originated from embryonic ectoderm. In humans, the main function of the hair is an important facet of appearance. Baldness or commonly called Alopecia is defined as the loss of hair from an area of the body. Hair loss affects millions of people, including over 40 % of men over the age of 30 and a significant number of women also. The factors responsible for hair loss are scarring, disease, infection, less blood circulation in the blood capillaries of scalp and sensitivity to the androgen. Although alopecia requires a careful history, close attention to the appearance of the hair loss, and a few simple studies can quickly narrow the potential diagnosis. The alopecia which is caused due to androgen sensitivity is called androgenetic alopecia. Andogenetic alopecia is one of the most common forms of hair loss, usually has a specific pattern of temporal-frontal loss in men and central thinning in women. The importance of hair either hair loss as well as the overgrowth of terminal hair on the body or face, has deleterious effects on self-esteem. Therefore the main focus of this review article is on causes of hair loss and the active ingredients for hair re-growth along with the assessment techniques.