On the effect of common glycolic acid on underarm dullness
Husband's underarm dullness is disturbed by many people. Recently, common glycolic acid has become more and more widely used in skin care, but it is worth exploring what effect it has on underarm dullness.

Common glycolic acid belongs to the class of fruit acids and has the ability to gently exfoliate. Its action on the skin can loosen the connection between the cells of the stratum corneum, and the old keratin is easy to fall off, making the skin surface smoother. And glycolic acid can stimulate the production of collagen in the dermis, making the skin firm and shiny.

As for underarm dullness, there are many causes. Or due to excessive friction, such as repeated friction of clothes; or due to the secretion of sweat glands, breeding bacteria; or related to endocrine, causing pigmentation.

Common glycolic acid acts on the dullness of the armpits, and its exfoliation power can help reduce the dullness caused by the accumulation of old exfoliation. After exfoliation, the skin absorbs skin care products better, and subsequent whitening care is more effective. It stimulates collagen production, can improve the texture of the underarm skin, and makes the skin tone even.

If you use common glycolic acid in the armpits, you should also pay attention. The underarm skin is delicate, and glycolic acid has a certain irritation. It should be used at a low concentration for the first time, and it should be tried on a small area first to see if there is any discomfort, such as redness, itching, etc. If so, stop using it immediately. When using, you should also pay attention to sunscreen, because the skin is more sensitive to ultraviolet rays after exfoliation, which is easy to cause pigmentation.

In summary, common glycolic acid may improve the dullness of the armpits. However, it should be used with caution and according to the skin condition, in order to obtain its benefits and avoid its harm.