On the use of glycolic acid on the face
If you want to use glycolic acid on the face, you should first understand its properties and effects. Glycolic acid is a type of fruit acid, which has a great effect on the skin.

It has three effects. One is exfoliation. It can slowly dissolve the interkeratinocyte adhesive on the surface of the skin, make the old keratin gradually detach, make the skin surface smooth, uniform color and radiance. The second is to promote metabolism. It can stimulate the metabolism of skin cells, accelerate the replacement of new cells, make the skin more energetic, and always maintain a youthful state. The third is to help absorption. After exfoliation, the skin absorbs nutrients in skin care products better, and subsequent maintenance is more effective.

It should be used with caution. Glycolic acid is more active, and the facial skin is delicate. If the concentration is improper or used too frequently, it is easy to cause discomfort. The skin is red and slightly itchy in light cases, and tingling and peeling in heavy cases. Therefore, when using for the first time, it is advisable to choose low-concentration products, such as 2% - 5% glycolic acid creams or essences, and use them once or twice a week. Try it behind the ear or on a small piece of facial skin before use. After observing for a few days, if there is no allergic reaction, it can be used normally. When using, avoid the eyes, mouth, and wounds.

When using, after cleansing, take an appropriate amount of product and apply it lightly to the face, push it evenly, and wait for a while for it to absorb. After that, moisturize with mild skin care products. Glycolic acid exfoliates the skin at the same time, or causes moisture loss to the skin. If you feel uncomfortable during use, stop using it immediately, wash with water, and seek medical attention if necessary.

In short, reasonable use of glycolic acid on the face can beautify the skin; if you don't use it with caution, the skin will be damaged. Users should be careful.