"On whether glycolic acid and nicotinamide can be used in combination"

The nourishment of the skin is related to the combination of various ingredients. Nowadays, glycolic acid and nicotinamide are quite common in skin care, but whether they can be used in combination is a matter of concern to everyone.

Glycolic acid is a fruit acid and the like. It has the ability to exfoliate, which can refresh the skin, promote cell renewal, and make the skin delicate and shiny. Niacinamide can inhibit melanin transport, brighten the skin tone, adjust the water and oil of the skin, and strengthen the skin barrier.

However, the two are superimposed, so be careful. Glycolic acid is acidic and can lower the pH of the skin. Niacinamide may be hydrolyzed into niacin in an acidic environment. Niacin is highly irritating to the skin, causing skin redness, itching and other discomforts.

Therefore, if you want to use it in combination, try it on a small scale first to observe the tolerance of the skin. And after using glycolic acid, wait for the skin to slow down a little, then use niacinamide, or both the next day. In this way, you can avoid skin discomfort and receive the effect of skin care. In short, the way of skin care lies in knowing the nature of the ingredients, smoothing the skin, and acting prudently to get good results.