On the feasibility of glycolic acid to stay on the skin at night
There are many methods for skin maintenance, and the use of glycolic acid has attracted much attention. However, whether glycolic acid stays on the skin at night, whether it is feasible or not, is really the concern of everyone.

Glycolic acid is a type of fruit acid, its molecules are small, and it penetrates the skin very strongly. It can often be seen in daily skin care. Its effects are many, it can peel off the old and waste exfoliation on the surface of the skin, make the skin look new, radiant and spontaneous; it can also stimulate the synthesis of collagen in the dermis, making the skin firm and elastic, and fine lines and folds gradually disappear.

As for whether it can stay on the skin at night, this needs to be carefully examined. When covering at night, the skin's metabolism is most vigorous. If used reasonably, it may help the skin repair. However, glycolic acid is irritating to a certain extent. If the skin is sensitive and delicate, keep it at night rashly, and it may cause skin discomfort. In mild cases, redness and itching may occur, and in severe cases, rashes and tingling may occur.

If you want to use glycolic acid at night, you should have a skin test first. Take a small amount of glycolic acid products, apply them to the skin behind the ear or inside the forearm, and wait for a few days. If there is no adverse reaction to the skin, you can use it cautiously on the face. And when you first use it, the concentration should be low and the frequency should be small, such as once a week. After the skin gets used to it, you should increase the frequency and concentration as appropriate.

Furthermore, after using glycolic acid at night, skin protection should not be ignored. Because it makes the skin more sensitive to ultraviolet rays, it is necessary to take strict sun protection during the day, apply sunscreen, and when going out, it is more appropriate to use umbrellas, sun hats, etc. to shade the sun to avoid sunburn and sun aging.

All in all, glycolic acid is not impossible to stay on the skin at night. Those who use it must carefully observe their own skin condition, act prudently, and follow scientific methods to avoid the harm of skin care.