In recent years, with the rapid development of cosmetics industry and the wide application of green concept in various industries, people also put forward the requirements of pure natural, non-toxic side effects and other aspects of anti-aging cosmetics, which creates a good foundation and premise for the application of natural plant extracts in anti-aging cosmetics.
Adding natural plant extracts to cosmetics to achieve anti-aging function has become the development trend of cosmetics industry. According to the characteristics of skin aging and the specific causes of skin aging, adding natural plant extracts in cosmetics can make cosmetics not only have the basic function of moisturizing, but also can further smooth skin, remove skin aging wrinkles, and achieve the purpose of delaying skin aging. Plant extracts have the advantages of natural safety and non-toxic side effects, so they are widely used as active raw materials in anti-aging cosmetics.
Natural plant extracts mainly include α -hydroxy acid, β -hydroxy acid, plant flavonoids, papayas mercaptoenzyme and so on, which can effectively improve the skin aging state and achieve the purpose of delaying skin aging. Plant flavonoids can have an effective cleaning effect on the free radical in the skin, the melanin deposited, still can accelerate the metabolism of skin cells, so that the skin becomes more moist, achieve anti-aging function.
Grape seed extract
Grape seed extract mainly includes procyanidins, grape seed oil, resveratrol, vitamins, tannins and so on, all of which have beauty and health care effects. Procyanidins have strong antioxidant capacity, its antioxidant effect is 50 times of VE and 20 times of VC. Grape seed procyanidins extract has 85% bioavailability in human body. Proanthocyanidins inhibit the production of peroxides caused by uv exposure to the skin. It can also inhibit maillard reaction, lipofuscin and senile plaque formation. It can also inhibit the activity of tyrosinase, which reduces the phthalediquinone structure of melanin to phenolic structure, so that the pigment fades. So procyanidins have the effect of improving skin inflammation, preventing melanization, whitening skin and anti-aging.
Green tea extract
The main chemical components of tea extract are Tea polyphenols. Tea polyphenols, also known as tea tannin, is the general name of a kind of polyhydroxy phenolic compounds contained in tea, referred to as TP. Its main components are catechins (flavane-drunk), flavonoids, flavonols, anthocyanins, phenolic acids, phenolic acids and polyphenols. At room temperature and low concentration, tea polyphenols have strong antioxidant activity. It is a natural antioxidant that can block ultraviolet rays and remove uV-induced free radicals, thus protecting the normal function of melanocytes. At the same time, it can also inhibit cell tyrosinase and catalase activity, thereby reducing the secretion of melanin and lipid peroxidation, to achieve freckle beauty effect. Studies show that the antioxidant activity of tea polyphenols is superior to vitamin E, and it has synergistic effect on vitamin C and E.
The main chemical components of rhodiola extract are salidroside and flavonoids. Salidroside can not only significantly enhance the ability of skin to resist ionizing radiation, but also prevent the damage of various rays (α, β, γ) radiation to lipid and cell membrane, improve heart and lung function, fight fatigue, protect the immune system of the body, and play an anti-aging role. Flavonoids have super superoxide dismutase (SOD) activity and free radical scavenging effect, can repair damaged skin, anti-lipid oxidation and anti-aging. In the study of the extraction technology of rhodiola rosea active ingredient and its cosmetic efficacy, the efficacy of the extract was tested by comparing with the positive substance control, which proved that rhodiola rosea extract had the ability of anti-oxidation and inhibiting tyrosinase in vitro, and could be used as an additive for delaying aging and whitening cosmetics.
Studies have found that rose contains a large number of phenols, flavonoids and polysaccharide compounds, these compounds have a good scavenging free radicals, anti-aging effect. In addition, rose contains a large amount of vitamin C also has a strong antioxidant. Rose extract is rich in nutrients, so it can be used in creams to retain moisture and nutrients in the skin while acting as an anti-aging agent.
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