The Compatibility of Glycolic Acid, Vitamin C and Niacinamide
The way of skin care. The compatibility of ingredients is related to the efficacy and suitability of the skin. Glycolic acid, vitamin C and niacinamide are all commonly used ingredients in skin care, but whether they can be used together needs to be carefully studied.

Glycolic acid is a type of fruit acid, which has the ability to exfoliate, which can make the old exfoliation of the surface of the skin fall off, make the skin new, radiant, and promote the absorption of other nutrients by the skin. Vitamin C is a strong antioxidant, which can resist the damage of free radicals to the skin, help collagen synthesis, and has the effect of whitening light spots and brightening skin tone. Niacinamide is also very important, which can regulate the oil secretion of the skin, improve the skin barrier function, and reduce pigmentation and brighten the skin.

As for whether the three can be used in combination, from the perspective of chemical properties, glycolic acid is acidic, and vitamin C is relatively stable in an acidic environment. The two are compatible, or there is no big problem, and the characteristics of glycolic acid to promote absorption may help vitamin C to play a better role. However, when nicotinamide encounters acid, under certain conditions, it may undergo a hydrolysis reaction to generate niacin. Although niacin also has skin care effects, if its concentration is not properly controlled, it may cause discomfort such as skin irritation.

Therefore, when actually using it, it is necessary to be cautious. If you want to try all three, you can try it on a small area of skin first to observe whether there is any discomfort such as redness, swelling, tingling, etc. And the order of use is also exquisite. You can use milder nicotinamide products first, wait for the skin to absorb, then use glycolic acid products, and finally use vitamin C products. In this way, it may reduce the chance of adverse reactions to a certain extent, give full play to the advantages of each ingredient, and achieve better skin care effects. In short, the matching of skin care ingredients should be based on the tolerance of the skin, and it should be done cautiously to reap the ideal fruit.