What is hair structure?
The hair that we see above the scalp is made up of 3 layers. The outer layer is called as cuticle which acts as a protective barrier and is important for cosmetic properties of hair such as softness, smoothness, shine, ease with which hair can be combed, etc. The next layer is called as cortex which is critical in giving strength and elasticity to the hair. If cortex gets damaged, it results in breakage of hair. It also contains melanin granules responsible for giving color to the hair. The third or the innermost layer is medulla which is porous and does not play any role in human, but it regulates body temperature in animals. In between these layers, lies intercellular cement which plays an important role, that is to allow penetration of any substance inside the hair. How strong is the single hair fiber? A single hair fiber is very strong. In fact, one strand of hair can take the weight of 100g without breaking. What is hair-care? As hair is a part of body, it too requires nourishment
