HOW DOES HAIR GROW?

HOW DOES HAIR GROW?Hair is composed of Keratin, a special protein that also produces our fingernails and toenails the nails and forms the protective outer layer of our skin. Each strand of hair consists of three concentric layers, the cuticle, the cortex and the medulla.The outer layer is called the cuticle and is thin and colorless, its job is to protect the thicker cortex which contains the