On the effect of glycolic acid on the skin
Glycolic acid, when it comes to the skin, there are many opinions. Whether it is good or evil, there is no agreement. If you want to investigate the truth, you must investigate it in detail.

Glycolic acid belongs to the class of fruit acids, with the smallest molecules, so it can quickly penetrate the surface of the skin. Its effect on the stratum corneum is significant, and it can promote the renewal of keratinocytes. If the stratum corneum is too thick, the skin is often dark and rough. Glycolic acid can loosen the connection between the keratinocytes, causing the old and waste keratin to fall off, and the skin will be renewed, the color will brighten, and the touch will become smoother.

Of course, everything has advantages and disadvantages. Although glycolic acid has the ability to rejuvenate the skin, its acidic properties, if used improperly, can also cause skin problems. Those with delicate skin, use it rashly, or cause discomfort. In mild cases, the skin is red and slightly itchy, which is a sign of skin irritation; in severe cases, it may feel painful or even damaged.

Furthermore, after using glycolic acid, the skin's resistance to ultraviolet rays may decrease. Due to the renewal of the stratum corneum, the new skin is thinner and tender, making it more susceptible to ultraviolet damage. Therefore, after using glycolic acid, sun protection is crucial. If you ignore sun protection, it may cause pigmentation and pigmentation, which is counterproductive.

To sum up, glycolic acid is not completely harmful to the skin. If used properly, it can enhance the color of the skin; if used incorrectly, it will be harmful. Users should carefully review their own skin type, use it moderately and timely, and supplement it with proper sun protection to enjoy its benefits and avoid its harm.