On the Effect of Glycolic Acid on Hair Color

Those who have the beauty of hair dyeing often worry that the color is easy to fade. Recently, the use of glycolic acid in hairdressing has attracted more and more attention, and everyone is suspicious: Glycolic acid can cause hair color to fall off?

Glycolic acid is weakly acidic. In skin care, it is often used as a exfoliating agent to soften the skin. However, when used on hair, its effect is widely debated.

It is said that glycolic acid can cause hair color to fall off. Because of the acidity of glycolic acid, it may affect the combination of pigment and hair strands in hair dyes. The color of hair dyes is retained due to the interaction between chemicals and hair keratin. Glycolic acid may break this effect, making the pigment loose and causing the hair color to fade gradually. In practice, if the product containing glycolic acid is used frequently, the hair color will gradually fade, especially for artificially dyed darker colors.

There are also dissidents. They believe that an appropriate amount of glycolic acid, without long-term high-concentration exposure, may not cause the hair color to fall off. The structure of the hair strands, although not indestructible, has some resistance. If the concentration of glycolic acid is low and the use interval is reasonable, the hair keratin can still maintain the original pigment binding, and the hair color change is not obvious.

In summary, the effect of glycolic acid on hair color depends on factors such as concentration, frequency of use and time. Use it properly, or it will not damage the hair color; if used carelessly, the hair color may fall off. Hair dyers who want to use products containing glycolic acid should be cautious and try it before a small part of the hair, and observe its reaction.