On the effect of glycolic acid on sun damage
In modern times, the skin is often damaged by sunlight, or the color is uneven, or the wrinkles are gradually formed. In the way of skin care, the use of glycolic acid has gradually attracted attention, and its effect on sun damage is quite worth exploring.

Glycolic acid is a fruit acid and the like, with small molecules that can quickly penetrate the surface of the skin. The skin is exposed to sunlight for a long time, and the keratin accumulates and the metabolism is sluggish. Glycolic acid can loosen the connection between the keratinocytes, promote their shedding, and accelerate the renewal of the surface layer of the skin. Like a person's face, if it is often damaged by sunlight and the skin tone is dull, after using glycolic acid, the old keratin will be exfoliated, new cells will appear, and the skin tone will gradually brighten, like a dusty pearl, and it will regain its luster.

Furthermore, sun damage often causes damage to collagen and elastic fibers in the dermis, and the skin is loose and wrinkled. Glycolic acid can stimulate fibroblasts and promote their production of collagen and elastic fibers. Just like the beams and columns of a house, after damage, after repair and reinforcement, the skin will be supported again, wrinkles will gradually lighten, elasticity will return, and it will return to a firm state.

Use glycolic acid with caution. Its acidity is irritating to a certain extent, and those with sensitive skin may feel red, itchy, and burning. Therefore, when using it for the first time, it is recommended to start with a low concentration, gradually increase it, and pay attention to the skin's reaction. When using it, you should also pay attention to sunscreen, because the skin is more sensitive to sunlight after the action of glycolic acid. If it is not properly protected, the damage will be exacerbated.

In summary, glycolic acid does have the ability to improve sun damage, but it can only be used reasonably and properly protected to obtain its benefits and avoid its harm, and achieve the best condition of skin care.