Q: Can I use ordinary nicotinamide products after using glycolic acid toner?
A: Generally speaking, glycolic acid toner is a fruit acid product, which has a certain exfoliation and promotes skin metabolism. The skin may be relatively sensitive after use. Niacinamide is a milder skin care ingredient, which has the functions of brightening skin tone and improving skin barrier.

In terms of ingredient compatibility, glycolic acid and nicotinamide usually do not have direct adverse reactions. However, since glycolic acid may thin the stratum corneum of the skin and become more sensitive, if nicotinamide is used directly at this time, some people with more sensitive skin may experience tingling, redness and other discomforts.

Therefore, if you want to use ordinary nicotinamide products after using glycolic acid toner, it is recommended to try it on a small area of skin first. If there is no discomfort after a few hours, then use it normally on the face. And when using, you can use toner or lotion as a base to reduce the sensitivity of the skin, and then apply nicotinamide products. This operation may better care for the skin and avoid discomfort.