Discussion on the Combination of Niacinamide and Glycolic Acid Toner
Recently, I have asked whether Niacinamide and Glycolic Acid Toner can be used together. Niacinamide belongs to the amide class and has a variety of skin care effects. It can improve skin dullness, regulate oil secretion, and strengthen the skin barrier. Glycolic acid is one of the fruit acids, which can promote the metabolism of the stratum corneum and make the skin smooth and delicate.

However, the combination of the two must be carefully considered. Glycolic acid is acidic and can reduce the pH value of the skin. If it encounters niacinamide, under specific pH conditions, niacinamide may hydrolyze into niacin. Niacin is highly irritating to some people's skin, or causes redness, itching, tingling and other discomfort.

If you want to use both of these, you can try it before a small piece of skin. If there is no adverse reaction to the skin, then gradually expand the scope of use. It is also recommended to use it at intervals, such as in the morning and evening, or alternately every other day. In this way, it may reduce the risk of skin discomfort, and obtain the benefits of both, while maintaining skin health.

In short, whether niacinamide is used in combination with glycolic acid toner should be carefully considered according to the individual skin type to protect the safety of the skin.