On the relationship between glycolic acid and sunburn
The world often suffers from sunburn. In recent years, glycolic acid has emerged in the field of skin care, and its relationship with sunburn is worth exploring.

Glycolic acid belongs to the class of fruit acids, with small molecules and strong penetrating power into the skin. It has a significant effect on the stratum corneum of the skin and can promote the renewal of keratinocytes. The stratum corneum is the first barrier of the skin. If the renewal is orderly, the skin's metabolism will be smooth.

When the skin is exposed to sunlight and ultraviolet rays, it can cause sunburn symptoms such as redness, swelling, pain, peeling, etc. Glycolic acid can use its unique properties to help repair sunburn. First, it can accelerate the replacement of damaged keratinocytes after sunburn, so that new healthy cells can quickly cover the surface of the skin, reducing redness, swelling and peeling. Second, it may stimulate collagen production. Sunburn often causes the loss of collagen in the skin, and the skin loses its elasticity and luster. Glycolic acid causes collagen regeneration, helps the skin regain vitality, and restores its former firming state.

It is also prudent to use glycolic acid. Because of its certain irritation, if the skin is already sensitive, use it rashly after sunburn, or the discomfort may be exacerbated. A skin test should be conducted before use, and the dosage and frequency should be controlled according to the degree of skin tolerance.

In summary, glycolic acid may have potential for the repair of sunburn, but users need to carefully observe the skin condition and use it reasonably to obtain its benefits and avoid its harm, and protect the skin from damage.