Discussion on whether niacinamide and glycolic acid can be combined
Recently, people have been exploring the way of skin care. Niacinamide and glycolic acid are both excellent skin care products, but whether they can be used together is quite puzzling.

Niacinamide has many effects on the skin. It can strengthen the skin barrier, enhance the skin's water-locking power, and can effectively reduce pigmentation, make skin tone even, and help control oil, making the skin refreshing and less fat. Glycolic acid is a type of fruit acid, which has excellent exfoliation power, can unclog pores, improve skin roughness, promote skin metabolism, and rejuvenate skin.

However, the combination of the two should be treated with caution. Glycolic acid is acidic and can reduce the pH of the skin, while niacinamide may hydrolyze into niacin in a low pH environment. Niacin may cause skin discomfort, such as redness, tingling, itching and other allergic symptoms. If the skin is already sensitive and fragile, the risk of combined use is even greater.

However, if the skin is well tolerated, combined use is also necessary. It can be tried on a small area of skin first, such as behind the ear or inside the arm, to see if the skin is uncomfortable. If there is no abnormality, the scope of use can be gradually expanded. And when combined use, it is advisable to pay attention to the order and frequency of use. You can use milder nicotinamide products first, and then use glycolic acid products after the skin absorbs them. The initial frequency of use should be low, such as once or twice a week, and then increase the frequency moderately after the skin adapts.

In general, whether nicotinamide is combined with glycolic acid depends on the individual skin condition. If there is any doubt about the combination, it is a safe policy to consult a professional dermatologist or skin care expert, which can ensure the effect of skin care and protect the health of the skin.