On the improvement of underarm dullness by glycolic acid
In today's world, people seek more skin balance, and underarm dullness plagues many people. And the effect of glycolic acid on this problem is quite popular.

Glycolic acid belongs to the class of fruit acids and has unique chemical properties. Its molecules are small and can easily penetrate the surface of the skin and reach the deep layers of the skin. This property gives it a unique advantage in improving underarm dullness.

In principle, glycolic acid can accelerate the metabolism of the stratum corneum of the skin. Underarm dullness is mostly due to keratin accumulation, which slows metabolism and causes melanin deposition. Glycolic acid can gently loosen the connections between keratinocytes, causing old keratin to fall off quickly and new cells to be accelerated. In this way, the skin surface renewal is accelerated, and melanin is difficult to accumulate, thereby reducing the dullness of the armpits.

Furthermore, glycolic acid can promote collagen synthesis. When the collagen of the armpit skin increases, its elasticity and luster are improved. Dull skin, due to collagen supplementation, regains its luster, and its color tends to be uniform. And the production of collagen helps to improve the overall texture of the skin, which is of great benefit to relieving the dullness of the armpits.

However, the use of glycolic acid to improve the dullness of the armpits should also be cautious. Because it is irritating, if the concentration is too high or used improperly, it is easy to cause skin discomfort, such as redness, swelling, tingling, etc. For beginners, it is recommended to choose a low-concentration product first, and try it on a small piece of skin without adverse reactions before expanding the scope of use. The use cycle should also be gradual and should not be rushed.

To sum up, glycolic acid does have the potential to improve underarm dullness. However, users should use it reasonably according to their own skin type in order to harvest the ideal effect and achieve the desire of smooth skin.