Hair Hair Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair. Most common interest in hair is focused on hair growth, hair types, and hair care, but hair is also an important biomaterial primarily composed of protein, notably alpha-keratin. Attitudes towards different hair, such as hairstyles and hair removal, vary widely across different cultures and historical periods, but it is often used to indicate a person's personal
Artificial nails can also be a risk when nails are applied by a disreputable nail salon that doesn't follow sanitary practices. There is concern over the flammability of ingredients used to make acrylic nails. It is suggested that they be kept at a distance from hair straighteners, dryers or curling irons, as well as from heat and flames when cooking, in order to avoid potential flame hazards. From an occupational health standpoint, there could be hazards to nail salon workers who are exposed to the chemical fumes from artificial nails during their entire work shift. Ethyl methacrylate can be used for artificial