Everyone is suspicious of leaving ordinary glycolic acid on the face for too long. Glycolic acid is a fruit acid, which has the ability to peel off the stratum corneum of the skin, which can promote the metabolism of the skin and make the skin rejuvenated and smooth.

There is also a risk if you leave it for too long. Those with sensitive skin may cause skin discomfort, such as redness, itching, burning, or even skin damage. Because of the irritation of glycolic acid, the skin is exposed to it for too long, and the burden increases.

If you want to leave glycolic acid on the face for too long, you should have a skin test first. Apply a little behind the ear or inside the arm, and wait for a few days to see if there are any adverse reactions. If there is no abnormality, try it first. And when initially using, the frequency should be low, such as once a week, and then gradually increase. At the same time, strict sun protection is required during the day to avoid damage to the skin due to light sensitivity.

In short, leaving ordinary glycolic acid on the face overnight is feasible for some people, but it is necessary to be cautious and carefully observe the skin reaction to ensure skin health.