When it comes to the use of glycolic acid and vitamin C first and then, the use of glycolic acid and vitamin C first and then is quite crucial.

Glycolic acid has the ability to exfoliate, which can make the skin's surface old and waste exfoliation, make the skin smoother and more delicate, and can promote the absorption of subsequent ingredients. If glycolic acid is used first, the stratum corneum can be cleaned and the pores can be slightly expanded. At this time, if vitamin C is used continuously, vitamin C can penetrate into the bottom layer of the skin more smoothly. Vitamin C is a strong antioxidant, which can effectively fight free radicals, brighten the skin tone, and inhibit melanin production. The use of the two successively seems to pave a smooth path for the skin to absorb and repair. The cleaning of keratin helps the absorption of vitamin C, and the effect of vitamin C enhances the health and shine of the skin.

However, there are also considerations. Glycolic acid is irritating to a certain extent. If the skin is sensitive and fragile, use glycolic acid first to avoid skin discomfort, redness, tingling, etc. At this time, it is advisable to use mild vitamin C as a base to build a solid foundation for skin protection and enhance skin tolerance. Vitamin C can regulate the state of the skin. After the skin adapts, use glycolic acid gradually, which can not only harvest the synergistic effect of the two, but also avoid the risk of skin intolerance.

The use of glycolic acid and vitamin C depends on the characteristics and state of the skin. Sensitive skin should be protected by C first, and then glycolic acid should be used as appropriate; tolerant skin, or glycolic acid can be used to clear the keratin first, followed by strong vitamin C. In this way, you can achieve the best state of skin care and radiate a natural and healthy brilliance.