On the Compatibility of Glycolic Acid and Niacinamide
Recently, various skin care products are popular, among which glycolic acid and niacinamide are quite popular. Glycolic acid is a type of fruit acid, which has the ability to rejuvenate the skin, can exfoliate the surface stratum corneum, make the skin smooth and delicate, and promote metabolism and help the skin regenerate. Niacinamide can regulate sebum secretion, improve skin dullness, increase skin luster, and strengthen skin barrier.

However, whether the two can be used together is doubtful. There are clouds, glycolic acid is acidic, and niacinamide may be transformed into niacin in an acidic environment. Niacin is irritating or causes skin discomfort, such as redness, tingling, etc.

However, looking at the products produced by The Ordinary, there are also exquisite studies on this. After many experiments and studies, if the concentration of the two is properly prepared and the skin tolerates it well, it is also necessary to use the same. Before use, try it on a small area of skin to see if there are any adverse reactions. If the skin does not feel uncomfortable, then gradually expand the scope of use. And when using, pay attention to the order and frequency of use. Usually, it is recommended to cleanse the face with a gentle cleansing product first, then use a toner as a base, and then take an appropriate amount of skin care products containing glycolic acid or nicotinamide, gently apply it to the face, and slowly massage until absorbed. At the beginning of use, the frequency should be low, and when the skin adapts, increase the number of times.

In short, glycolic acid and nicotinamide should be used with caution. According to your own skin condition, you can use it reasonably to achieve the good effect of skin care and avoid the risk of skin damage.