How can I have healthy skin?

First, eat more foods that are beneficial to skin health: (1) tomatoes, kiwis and lemons: rich in vitamin C, which can inhibit the formation of melanin, prevent pigmentation, keep skin fair and fade freckles. In addition, tomatoes can effectively resist oxidation, can improve the dark yellow skin color which is proliferated by oxidation, and is very helpful for whitening skin color. (2) Skin: rich in collagen and elastin, it can make cells plump, reduce wrinkles and enhance skin elasticity. (3) Broccoli: Enhance the skin's ability to resist injury. Broccoli is rich in vitamin A, vitamin C and carotene, which can enhance the skin's anti-injury ability and help maintain skin elasticity. (4) honey: keep the skin rosy and shiny. Honey is known as the most perfect nutritious food in nature, which contains a lot of amino acids, vitamins and sugars that are easily absorbed by the human body. Comprehensive and rich nutrition, regular consumption can make skin ruddy, tender and shiny. (5) Skin: It is a kind of food rich in collagen and elastin, which can reduce wrinkles and enhance skin elasticity. (6) Salmon: Prevent wrinkles. Omega-3 fatty acids in salmon can eliminate bioactive substances that damage skin collagen and skin moisturizing factors, prevent wrinkles and prevent skin from becoming rough. (7) kelp: keep the water and oil balance of the skin. Kelp is an alkaline food rich in vitamins and minerals. Eating regularly can adjust the pH in the blood and prevent the skin from secreting too much oil. (8) Drink plenty of water and green tea: tea mainly contains tea polyphenols, theophylline, vitamin C, vitamin E, SOD (superoxide dismutase) and trace elements such as selenium, molybdenum, manganese and germanium; Has the functions of anti-aging, whitening and anti-ultraviolet. Second, the daily care of the skin: four steps of skin scientific care 1, cleaning: the cleanser absorbs and cleans off dirt, and the cleanser takes away some oil and moisture at the same time, so the skin is short of water and oil. 2, refreshing skin: refreshing/moisturizing water; Exogenous hydration, secondary cleansing; 3, skin care: moisturizing-moisturizing milk, cream; Exogenous supplement of oil and moisture makes the skin brick wall structure complete and the skin barrier normal; 4. Sunscreen and moisturizing are the basis of skin disease treatment; Moisturizing is the basis of anti-aging; Adequate moisturizing is also the foundation of skin bodybuilding. Choose skin care products according to skin type: 1, dry skin: deep moisturizing, moisturizing and sunscreen; 2, oily skin: oil control, moisturizing, sunscreen 3, mixed skin: zoning care 4, neutral skin: moisturizing, moisturizing, sunscreen sensitive skin: prone to erythema, papules, telangiectasia; Easily stimulated, fuck? Fever, itching, tingling and tightness; Intolerance to common skin care products. Need medical+medical skin care products. Third, medical beauty: 1, medical skin care products: medical skin care products: it is another new treatment method for dermatologists and an important auxiliary or supplementary treatment after drug treatment; Repair the barrier function of skin and reduce the recurrence of diseases. 2, photon rejuvenation: can shrink pores, improve skin fine lines and textures, restore skin elasticity and luster, and balance skin color; In addition, it can also treat some pigmented skin lesions, such as freckles, photoaging spots and skin telangiectasia.