How is glycolic acid primarily beneficial for skin treatment?

Glycolic acid is primarily beneficial for skin treatment through its exfoliating properties. As a member of the alpha hydroxy acid (AHA) family, it works by loosening the bonds that hold dead skin cells together on the surface of the skin. This process encourages the shedding of the outer layer of dead skin cells, resulting in a smoother texture and a brighter complexion. By effectively exfoliating the skin, glycolic acid not only helps to improve skin tone but also stimulates cell turnover, which can lead to various positive outcomes such as reduced appearance of fine lines, improved skin texture, and a more youthful appearance overall.

Although it can have secondary effects like reducing excess oil or promoting healing, its primary and most recognized benefit lies in its ability to exfoliate, making it an essential ingredient in many skincare products aimed at improving the surface appearance of the skin.