A good beautician must know fairly well about the skin. New cells keep on forming in the skin and the old and worn ones go out of the skin from its upper layer. The cells keep on forming in the lowest layer of our skin. Skin is formed of hair, cells, sweat glands, oil glands, blood veins and etc. It has three layers such as epidermis, dermis and hypodermis. There are few types of skin such as Normal skin, dehydrated skin, Sensitive skin, Combination skin, Mature of aged skin, Oily skin, Dry skin and Shallow skin. To find the type of skin the following three things can be taken help of: Tissue paper, Soap and Litmus paper.

Tissue paper: press the tissue paper lightly on your face before washing your face, soon after you get up in the morning. Then pull it off and examine it. If it has white flakes, the skin is dry. If there are drops of moisture or oiliness on it, the skin is oily; and if you find both of them on it, the skin is normal or it is a combination skin. Soap: After washing the face with soap once more after five to ten minutes, if oiliness is felt on the skin, it is the oily skin. If the skin feels tight after washing the face with soap, it is the dry skin. The normal skin is dry in some parts and oily in others. Litmus paper: Press a litmus paper lightly on your face. If a blue litmus paper turns red, the skin is dry. If a red litmus paper turns blue, the skin is oily. If the litmus paper does not change its color blue or red, it is the normal skin.