On whether glycolic acid hurts hair

In recent years, glycolic acid has become more and more popular in all kinds of hair care products, but people have discussed whether it hurts hair.

Glycolic acid belongs to the group of fruit acids, which are weakly acidic. It often exfoliates and promotes metabolism, and is used for skin care. As for hair, its mechanism is related to hair scales. Hair scales are stacked like a roof of tiles, covering the hair and protecting its texture. When glycolic acid encounters hair, or because of its acidic properties, hair scales open.

If the concentration of glycolic acid is high and used frequently, the hair scales will be difficult to combine for a long time, and the moisture and protein in the hair will be easily lost, resulting in withered and brittle hair, which is a sign of hair injury. However, if the concentration is appropriate and sometimes used, glycolic acid may help remove fouling from the hair, pass through the hair follicles, and make the hair more healthy.

There is a low concentration of glycolic acid conditioner applied to the hair. Over a few months, the hair becomes supple and shiny, and no damage is seen. There are also those who are too hasty and use it frequently at high concentrations, and the hair is like dry grass, broken and clumped.

Therefore, whether glycolic acid hurts hair depends on its concentration, frequency of use and individual hair quality. Users should check their own hair quality, choose the product carefully, and control the degree of use, in order to obtain the benefits of hair care and avoid hair damage.