Relevant data shows that 40% of the world's population is using skin whitening products, especially in Asia, "one white cover a hundred ugliness" is the common aesthetic of most women. The scale of the whitening industry is getting bigger and bigger, and people's demand for whitening products is also increasing. The traditional whitening cosmetic raw materials (such as arbutin, kojic acid, vitamin C, etc.) Up-and-coming, resveratrol is one of them.
Figure: 2013-2018 Whitening Industry Market Scale (Source: Guanyan Tianxia Data Center)
Resveratrol is a polyphenolic compound that exists widely in nature. In 1940, the Japanese first discovered resveratrol in the roots of the plant resveratrol, and in the 1870s, it was first discovered in grape skins. The existence of veratrol, which can exist in plants in free forms of trans and cis forms, has antioxidant biological activity, and the biological activity of trans isomers is higher than that of cis forms.
Resveratrol is widely found in nature, such as grapes, knotweed, peanuts, mulberries and other plants. It is the main raw material for medicine, chemical industry, health care products, and cosmetics industries. It can improve skin problems such as melasma and reduce wrinkles.
Resveratrol efficacy and action
Whitening
Resveratrol can be used as a skin lightening agent, it can inhibit the activity of tyrosinase; animal studies and clinical trials have shown that 1% of resveratrol can reduce UV-induced pigmentation. It also fights photoaging by inhibiting the synthesis of melanin, resulting in fairer skin and less melasma.
Figure: The improvement of facial melasma after 8 weeks of whitening agent containing 0.05% resveratrol
Figure: Reduced melanin in guinea pig skin with 1% resveratrol
Note: A-control group; B-ultraviolet irradiation positive group; C-after using 1% resveratrol (arrows indicate melanin)
Figure: 0.001% resveratrol can reduce the melanin of B16F10 cells by 50%
Anti-Aging
Resveratrol has antioxidant properties that can delay the photoaging process of the skin by reducing the expression of AP-1 and NF-kB factors, thereby protecting cells from oxidative damage to the skin caused by free radicals and UV radiation. Research shows that topical application of resveratrol to the skin can protect against UV-induced damage and help reduce collagen loss and symptoms of skin aging.
Figure: Improvement of facial wrinkles after 11 weeks of serum containing 1% resveratrol
Recombination suggestion:
Combining with fruit acid can reduce the skin irritation caused by fruit acid.
Combined with green tea extract, resveratrol can reduce facial redness in around 6 weeks.
Combined with vitamin C, vitamin E, retinoic acid, etc., it has a synergistic effect.
Combined with butyl resorcinol (a derivative of resorcinol), it has a synergistic whitening effect and can significantly reduce melanin synthesis.
How to use: Add it at room temperature, and heat it to above 40°C to speed up the dissolution rate. The optimum pH range of the system is 3.0-6.5. It is recommended to add UV absorbers to day care products.
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