In recent years, with the rapid development of the cosmetics industry and the widespread application of green concepts in various industries, anti-aging cosmetics have also put forward requirements for pure naturalness and non-toxic side effects. This is why natural plant extracts are used in anti-aging cosmetics. The application has created a good foundation and premise. Adding natural plant extracts to cosmetics to realize the anti-aging function of cosmetics has become the development trend of the cosmetics industry. In view of the characteristics of skin aging and the specific causes of skin aging, adding natural plant extracts to cosmetics can make the cosmetics not only have the basic functions of moisturizing, but also can further smooth the skin, remove skin aging wrinkles, and achieve the purpose of delaying skin aging. Plant extracts have the advantages of natural safety and toxic side effects, so they are widely used as active raw materials in anti-aging cosmetics.
Natural plant extracts mainly include α-hydroxy acids, β-hydroxy acids, plant flavonoids, papaya sulfhydrylase, etc., which can effectively improve the state of skin aging and achieve the purpose of delaying skin aging. α-Hydroxy acid can effectively penetrate into the stratum corneum of the skin, weaken the bonding force between cells in the aging stratum corneum, promote skin cell metabolism, so as to achieve the effect of improving the aging state of the skin and delaying aging. β-Hydroxy acid has advantages in improving the skin and delaying aging. Compared with traditional fruit acid, β-hydroxy acid is more easily absorbed by the skin, allowing the surface cells of the skin to fall off naturally and promoting the rapid regeneration of new cells. At the same time, β-hydroxy acid can also effectively remove the aged keratin in the pores and make the skin more delicate. Plant flavonoids can effectively cleanse free radicals and deposited melanin in the skin, and can also accelerate the metabolism of skin cells, thereby making the skin more moisturized and achieving anti-aging functions. Papaya sulfhydrylase is an active factor with high biological activity. It is extracted from fresh tender papaya fruit. It can effectively remove superoxide free radicals and hydroxyl free radicals in the body, and make the peroxidized lipids in the skin. The quality content is reduced to prevent cell aging and delay skin aging.
1. Grape seed extract
Grape seed extracts mainly include polyphenols, proanthocyanidins, grape seed oil, resveratrol, vitamins, tannins, etc., all of which have beauty and health effects. Proanthocyanidin has strong antioxidant capacity. Its antioxidant effect is 50 times that of VE and 20 times that of VC. Grape seed proanthocyanidin extract has 85% bioavailability in the human body. Proanthocyanidins can inhibit the generation of peroxides caused by ultraviolet radiation on the skin; it can also inhibit Maillard reaction, inhibit the formation of lipofuscin and senile plaques; it can also inhibit the activity of tyrosinase, which reduces the phthalic acid of melanin. The quinone structure is reduced to a phenolic structure, which makes the pigment fade. Therefore, proanthocyanidins have the effects of improving skin inflammation, preventing blackening, whitening the skin, and anti-aging.
Grape seed oil also has a high mass fraction of VE, which can reach 360μg/g. And VE can speed up the removal of damaged cells and senescent cells, protect regenerative cells and new cells, and retain moisture, so that it can delay skin aging. Grape seed oil has a certain antioxidant effect and anti-aging effect.
2. Green tea extract
The main chemical component of green tea extract is tea polyphenols. Tea polyphenols, also known as tea tannins, are a general term for a kind of polyhydroxy phenolic compounds contained in tea, referred to as TP for short. Its main components are catechins (flavanoids), flavonoids, flavonols, anthocyanins, phenolic acids, depsilic acids and polymerized phenols. At normal temperature and low concentration, tea polyphenols have strong antioxidant properties. It is a natural antioxidant that can block ultraviolet rays and scavenge ultraviolet-induced free radicals, thereby protecting the normal function of melanocytes. At the same time, it can also inhibit the activity of tyrosinase and catalase in the cells, thereby reducing the secretion of melanin and lipid peroxidation, and achieving the effect of freckle removal and beauty. Studies have shown that the antioxidant activity of tea polyphenols is significantly better than that of vitamin E, and it has a synergistic effect on vitamins C and E.
3. Rhodiola rosea extract
The main chemical components of rhodiola rosea extract powder are salidroside and flavonoids. Rhodiola glycosides can not only significantly enhance the skin’s ability to resist ionizing radiation, but also prevent damage to lipids and cell membranes caused by various rays (α, β, γ) radiation, improve cardiopulmonary function, resist fatigue, protect the body’s immune system, and exert resistance. Aging effect. Flavonoids have super-strong superoxide dismutase (SOD) activity and free radical scavenging effect, can repair damaged skin, anti-lipid oxidation and anti-aging. In the research on the extraction process of the active ingredients of Rhodiola rosea and its beauty efficacy, the efficacy of the extract was tested by comparison with the positive substance control, which proved that the Rhodiola rosea extract has the ability to resist oxidation and inhibit tyrosinase in vitro. As an additive for anti-aging and whitening cosmetics.
4. Rose extract
Studies have found that roses contain a lot of phenols, flavonoids and polysaccharide compounds, which have good effects of scavenging free radicals and delaying aging. In addition, the large amount of vitamin C contained in roses also has strong antioxidant properties.
Rose extract powder is rich in nutrients, so it can be applied to face creams to lock in the skin's original moisture and nutrients while exerting anti-aging effects. In addition, rose flower can be used to extract essential oils. Because of its extremely low yield and high efficacy, it is known as "liquid gold". While refining rose essential oil, a large amount of rose hydrosol can be obtained. Pure dew is a by-product containing nutrients and active substances obtained in the distillation and extraction process of essential oils. It is a 100% saturated distillation stock solution.
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