Hair and Skin

The body's largest organ, skin not only protects us against environmental influences, but also acts as a continuous conductor sending sensory information to the brain for processing.
Skin consists of two primary layers: the epidermis and dermis. The epidermis is the external layer of skin and is composed mainly of a protein called Keratin. The inner layer of skin, known as the dermis, contains collagen protein which provides strength and contains the nerves, blood vessels, sweat glands, oil glands and upper part of the hair follicle.
The skin is in a constant state of renewal as cells from below divide and replenish aging cells above. Every 14 days the external skin surface is renewed, and every 45-75 days skin undergoes a complete re-building of its full thickness.