Plant extracts for moisturizing and repairing skin

2013-01-25 classification: efficacy effect 1 person commented that skin dryness caused by weakened skin barrier function is an important feature of skin aging Skin moisturizing is the result of two factors: the sebum membrane which has the function of inhibiting water evaporation and the natural moisturizing factor which exists in the keratinocytes Collagen and elastin are two important proteins that make up the dermis of the skin Collagen can give the extracellular matrix strength and toughness, while elastin can give the skin elasticity The ability of synthesis collagen and elastin of aging skin decreased, collagen fiber became thicker, and abnormal cross chain appeared, which resulted in the decrease of skin elasticity and the increase of wrinkles Therefore, an important way to solve the problem of skin aging is to moisturize and repair the skin barrier function Hyaluronic acid added in anti-aging cosmetics is a typical representative with moisturizing and skin barrier repair functions In a previous article, plant lifting net sorted out some anti-aging plant extracts for you If you are interested in anti-aging topic, you can see them and learn about relevant information Hyaluronic acid (HA) is a kind of high molecular mucopolysaccharide with d-n-acetylglucosamine and D-glucuronic acid as structural units Hyaluronic acid extracted from aloe is a plant-based moisturizing and soothing agent The results show that the carboxyl and other polar groups in HA molecules can form hydrogen bond with water and combine with a large amount of water, which plays a role of water conservation in skin tissue The theoretical water conservation value is more than 500 ml / g, and the actual water conservation value in connective tissue is about 80 ml / g In addition, ha, sulfated mucopolysaccharide, collagen, elastin and other fibrous proteins together form extracellular gel matrix containing a large amount of water, which is the material exchange medium of cell metabolism This aqueous gel matrix makes the skin flexible, elastic, smooth and tender Ha can also promote the proliferation and differentiation of epidermal cells, prevent and repair skin damage Ha can also prevent the production of some enzymes in cells, reduce the formation of free radicals, and play an important role in preventing free radicals from damaging cell structure, producing lipid peroxidation and causing body aging Vitamin E is a fat soluble vitamin, also known as tocopherol, which is one of the most important antioxidants The vitamin E content of wheat germ oil and rice germ oil in wheat germ and rice germ is very high, which is a high quality emollient Research shows that vitamin E can stabilize the protein active structure of cell membrane, promote the normal development of muscle, maintain the elasticity of skin, and keep skin and body alive; meanwhile, vitamin E can enter skin cells to directly help skin resist the damage of free radicals, ultraviolet rays and pollutants, and prevent skin from losing elasticity and aging due to some chronic or hidden injuries.