In the field of skin care, people often ask whether ordinary glycolic acid (Glycolic Acid) and niacinamide (Niacinamide) can be used together.

Glycolic acid is a fruit acid, which has the effect of exfoliating, can accelerate skin metabolism, make skin smoother and more delicate, and can also improve dull skin tone and fade pigmentation. Niacinamide is a vitamin B3 derivative, which can effectively regulate oil secretion, shrink pores, strengthen skin barrier, brighten skin tone and improve skin texture.

In theory, the two work together or interact. Glycolic acid lowers the pH of the skin, while niacinamide may transform into niacin in a low pH environment. Niacin may cause skin discomfort, such as redness, tingling, itching and other allergic reactions.

However, many studies and user experience show that if used properly, the two can also be used together. First, make sure that the skin tolerates both when used alone. When using, it is recommended to establish skin tolerance first. Start with low-concentration products, and do not use them at the same time. You can separate them morning and evening. For example, use niacinamide products in the morning to use their oil control and enhance barrier function; use glycolic acid products in the evening to use their skin repair period at night to exert their skin rejuvenation effect. At the same time, do a good job of moisturizing and sunscreen, because the combination of the two may make the skin more sensitive.

In short, ordinary glycolic acid and nicotinamide are not absolutely not to be used together. The key is to try it carefully and use it correctly according to your own skin type. If the skin is uncomfortable during the process, you should immediately stop using it and consult a professional dermatologist for advice.