The skin covers the surface of the body and protects the body’s tissues and organs from external stimuli and damage; it absorbs nutrients, perspires, secretes sebum, regulates body temperature, and is also an important sensory organ. The skin is like a mirror that reflects the body’s health, age and emotions. Everyone, especially women, want their own youthfulness and beauty power, to do this we must understand the characteristics of the skin, the correct understanding of their own skin, the implementation of the best maintenance and care, coupled with the appropriate grooming beautification. First, the ABCs of skin characteristics skin is the largest organ of the body, its total weight is about 16% of body weight, adult skin surface area of about 1.5 square meters. The skin consists of three parts: epidermis, dermis and subcutaneous tissue. The thickness of the skin varies according to age and location, excluding subcutaneous tissue, and is about 0.5-4 mm. The skin of the eyelids, vulva, breasts and face is thin, while the skin of the palms and soles of the feet is the thickest. The epidermis is mainly composed of keratin-forming cells and dendritic cells, and is divided into five layers from the outside in. The outermost keratin-forming cells are fully keratinized, dehydrated and dry, and have a protective effect, called the stratum corneum. The deepest layer, which is columnar in shape and borders the dermis, is called the basal layer, which produces new keratin-forming cells and allows the cells to push upward and eventually shed, a cycle of about 28 days. There are melanocytes between the basal layers, and melanin protects the deeper tissues from UV radiation. Below the epidermis is the dermis, subcutaneous tissue with fibers, cells, connective tissue, adipose tissue, blood vessels, nerves, skin appendages, etc., which provide nutrition to the epidermis. This gives the skin a certain degree of toughness and elasticity, which moisturizes and cushions pressure. Because the skin has these characteristics, so it has a protective role, the role of nutrient absorption, regulation of body temperature, the role of secretion and excretion, the role of the senses, the role of beauty, metabolism and the role of the immune system. Second, how to maintain the skin as an organ of the human body, is part of the human body, to maintain good skin, first of all, we must pay attention to the overall health maintenance: (1) to maintain a happy spirit, cheerful thinking, to prevent the aging of the skin has a very important role, so that people in the internal and external living environment to achieve harmony and unity. (2) Take sufficient and necessary nutrients, diversify your diet, avoid partial diet, and eat more foods rich in protein, vitamins and minerals. (3) Should ensure sufficient sleep, skin renewal and respiration mainly from 10:00 pm to about 2:00 am. (4) Adhere to regular exercise to enhance physical fitness. Next, we should pay attention to the maintenance of local skin health: ① Skin cleaning and hygiene: remove facial dirt with cleaning cream or cleanser, apply cleanser to forehead, nose, cheeks, jaw and neck, massage with fingertips in upward circles on each part of the face to dissolve facial oil, then use warm water (water temperature below 350C) to rinse the face and neck from the outside in and from the bottom up, usually 1~2 times a day. For the cleaning of the whole body skin, it varies from place to place and from season to season, usually 1~2 times a week is enough. It is best to clean with soft water and rub on moisturizer after bathing to keep the skin moist. ② Skin care according to different types. First of all, learn to judge the nature of their own skin, the method is very simple, the face will be washed at night, do not apply any lipid cream, the next morning with a clean tissue on both sides of the nose gently wipe, if the tissue absorbed full of oil, that is oily skin, if a little oil, but not too much, that is neutral skin, if there is basically no oil, it is dry skin. Oily skin has high sebum secretion, large pores, and is prone to seat sores, but is tolerant to stimulation. Wash with warm water at least 2 times a day, followed by topical tightening water and topical creams, such as cold cream. Dry skin dry, sebum less, fair skin, easy to wrinkle, intolerant of stimulation, wash your face with warm water 1 to 2 times a day, do not use soap, and generally use lipid agents to protect the skin. Neutral skin, between the above two, generally use more emulsion skin care. Sensitive skin, thin skin, dilated capillaries on both cheeks, lack of luster, easy to allergic. For this type of skin should be washed with soft water, do not use towels over scrubbing, avoid using fragrances, available children’s skin care products. Combination skin: the bridge of the nose, nose, forehead for oily, cheeks for dry, care should be both. Third, skin care considerations In accordance with the nature of their own skin for routine care at the same time, should pay attention to: 1, avoid the stimulation of cold and sand, especially in winter and spring, so as not to make the skin become dry, coarse. 2, sunlight or ultraviolet radiation, is one of the main factors of skin aging, excessive sunlight exposure can cause skin wrinkling, loosening, aging, pigmentation, capillary dilation, photosensitive dermatitis, skin cancer and other diseases. People should avoid exposure to sunlight from 11:00 am to 3:00 pm, wear umbrellas or hats when going out, and rub sunscreen on the outside. For facial freckles, capillary dilation, large pores and other problematic skin can be treated with photorejuvenation instrument. The actual fact is that you can find a lot of people who are not able to get a good deal on this kind of things. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. 5, do not use your face as a “test bed”, avoid using different series of cosmetics on the skin at the same time, which can easily cause skin allergies and other adverse reactions. In short, skin care should pay attention to the health of the whole body, local skin care and the correct use of skin care products and other issues. Once the skin problem should go to a regular hospital specialist, do not use random medication by yourself which will lead to aggravation or adverse consequences. May your beauty be permanent and your youth be preserved forever.