This is a very boring text expression, but you must read it carefully if you love beauty …… This text can tell you how to love your skin and how to make aging knock your youthful door later. The aging of human skin can be roughly divided into two parts: physiological skin aging and pathological skin aging. What is physiological skin aging? Physiological skin aging is the progressive aging of the skin with age, is the endogenous process of programmed aging, with the passage of time, physiological skin aging generally starts from about 30 years old, first in the corners of the eyes appear crow’s feet, 40 years old appear forehead lines and frown lines, after the age of 50 years old facial skin sagging nasolabial folds wrinkles, after 60 years old facial skin sagging, neck, jaw wrinkles, Wrinkles appear on the neck and jaw after age 60, and wrinkles appear on the face after age 70. Some people may look younger or older than their peers, depending on their genetic background, living environment, psychological state and nutritional status. What is pathological skin aging? Pathological skin aging is mainly caused by photoaging and certain diseases (skin aging caused by diseases will not be discussed here). In daily life, if you look carefully, you can often see some elderly people face and neck skin is full of wrinkles and discoloration, but the back of the abdomen and other non-exposed parts of the skin wrinkles, discoloration is very little, the skin is more smooth similar to the middle-aged or even young people’s skin, which indicates that the exposed parts of the skin aging is more serious and rapid than the non-exposed parts, the reason lies in the light aging. Photoaging is the skin aging caused by long-term exposure to ultraviolet rays of the sun, and is the most important skin aging factor in addition to physiological aging. Human skin receives ultraviolet radiation from sunlight almost every day, and ultraviolet light (UV) is the most important exogenous factor leading to skin aging, and skin aging caused by UV is called skin photoaging. Skin photoaging is caused by both medium-wave ultraviolet radiation (UVB, wavelength 320-275 nm) and long-wave ultraviolet radiation (UVA, wavelength 400-320 nm) in sunlight, and about 80% or more of the exposed parts of human cosmetic problems are caused by photoaging, which is the most important exogenous aging factor of skin. Sun protection, sun protection, sun protection important words said three times! Long-term, excessive and unprotected exposure to sunlight UV radiation can lead to abnormal epidermal keratinocyte proliferation, triggering seborrheic keratosis, stimulating epidermal melanocytes leading to abnormal skin melanin metabolism, triggering skin pigmentation abnormalities such as age spots and melasma; UV radiation can lead to a decrease in dermal fibroblasts, dermal collagen fibers and elastic fibers degeneration and fracture leading to dermal atrophy, making skin elasticity Chronic sunlight exposure can also cause changes in skin microcirculation, which can be manifested as capillary dilation in the early stage and reduction of nutritive small blood vessels and disappearance of capillary network in the late stage, causing skin to lose its luster. The physiological skin aging process is genetically determined and cannot be changed, but beneficial lifestyle habits and proper protective measures can significantly slow down the aging process of the skin. 1, develop good habits: skin is the mirror of the overall health of the body and mind, maintain a good state of mind, good habits, good nutrition and adequate sleep, will naturally have a lasting healthy, young skin. Find a regular physical exercise program that you like and can stick to for a long time. Suitable physical exercise can make the skin’s blood vessels dilate and blood circulation accelerate, making the skin rosy, and long-term adherence will also improve the texture of the skin. Staying up late can cause cumulative skin texture changes and aging, so try to avoid staying up late. In addition, lack of sleep may interfere with the secretion of growth hormone ultimately affect the texture of the skin. 2, do a good job of UV protection: as mentioned before, in addition to natural physiological aging, the main external cause of aging appearance is the sun’s ultraviolet radiation caused by light aging, so it is very important to do a good job of sun protection: avoid exposure to the sun, wear a wide-brimmed hat, sunglasses, long pants and long-sleeved tops when you go out in spring and summer, and it is very important to rub sunscreen on exposed parts. 3, the appropriate use of antioxidants: normal skin has a relatively complete antioxidant defense system, including a variety of enzymes and non-enzymatic antioxidant substances, such as the familiar SOD (superoxide dismutase), glutathione peroxidase, catalase, glutathione reductase, vitamin C and so on. UV overexposure causes damage to the mitochondrial function of skin cells. The damaged mitochondria will undergo defective electron transfer function and thus produce large amounts of ROS in energy metabolism, and excessive oxidative metabolic wastes will exceed and exhaust the antioxidant enzyme scavenging capacity, leading to damage to skin cells and tissues. At this time, if additional non-enzymatic low-molecular antioxidants such as glutathione, vitamin E, vitamin C, carotenoids and grape seed oil are supplemented, the skin’s ability to remove oxidative metabolic wastes can be enhanced, thus playing an anti-UV anti-aging role. Therefore, daily life often eat fruits and vegetables rich in vitamin E, vitamin C and carotenoids, or topical use of cosmetics rich in the above antioxidant effects, can alleviate the aging caused by ultraviolet light and oxygen free radicals to a certain extent. 4, reasonable use of cosmetics: cosmetics are not a panacea, but rational and reasonable use of cosmetics can indeed play a significant role in skin care and slow down the aging process. Moisturizers are the mainstream anti-skin aging cosmetics: the sebum secreted by the sebaceous glands of the skin will form a water-lipid film on the surface of the skin, which plays a role in protecting and preventing the evaporation of water from the skin surface. When the skin ages, the function of the sebaceous glands gradually decreases and sebum secretion decreases, causing the water content of the skin to drop and the skin to dry out. Therefore, appropriate use of moisturizing cosmetics is beneficial to skin health and delay aging. Moisturizing cosmetics containing hyaluronic acid, allantoin and algae polysaccharide have better moisturizing effects. In the elderly, dry skin may develop into stubborn pruritus, and the skin’s ability to resist ultraviolet rays may also decrease after losing the hydrolipidic film. Skin barrier repair cosmetics: raw materials that can repair the skin barrier include ceramides, vitamin E, etc. 5. Appropriate supplementation of estrogen of plant origin for women after 30 years old: There is a difference between men and women. For women, the skin is an estrogen-sensitive organ. Estrogen regulates the synthesis of collagen fibers in the skin through the estrogen receptors contained in the skin tissue, which in turn affects the elasticity, flexibility and wrinkle formation of the skin. Estrogen can regulate the synthesis of endogenous hyaluronic acid to affect the skin’s water retention properties, and when estrogen secretion is insufficient, the skin’s moisturizing and anti-photoaging effects are reduced; melanocytes also have estrogen receptors, and when estrogen secretion is insufficient and disrupted, it can cause skin discoloration problems through melanocytes; estrogen also slows hair loss by antagonizing androgenic effects. As women age, estrogen levels decline year by year after the age of 30, especially after menopause when low estrogen levels accelerate natural skin aging and photoaging, resulting in skin atrophy, decreased skin collagen content and water content, reduced skin elasticity, reduced sebum secretion, and symptoms of relative hyperandrogenism. Since the medical community began using estrogen to treat gynecological conditions in the 1940s, it has been found that estrogen has a significant visible age-delaying effect on female skin, particularly in terms of anti-aging and accelerating the healing ability of postmenopausal women. Because of the presence of the estrogen system, aging occurs more rapidly and significantly in women than in men, seriously affecting their psychosocial status, but direct estrogen supplementation may increase the incidence of breast and cervical cancers. Plant-derived estrogens such as flavonoids, coumarins, lignans and terpenoids have the common feature of having an estrogen-like biphenol ring structure, which is very similar to animal estrogens, and can play a role in replacing endogenous estrogens without increasing the risk of breast cancer and cervical cancer. . 6, but also through the following microplastic methods to effectively solve the skin problem: strong pulse light, laser to improve wrinkles and pigmentation; local drug injections to wrinkle: such as BOTOX injection wrinkle, hyaluronic acid, collagen injection wrinkle injection wrinkle removal; surgery to wrinkle: skin tightening surgery is the wrinkles and skin stripping after lifting tight, especially the removal of loose skin and fascia, and then sutured, surgery is divided into forehead wrinkle, between the eyebrows The length of the post-operative effect is affected by a variety of factors, and there are certain risks.