Compatibility of kojic acid and glycolic acid
Skin care in the world, there are many categories and complex ingredients. Both kojic acid and glycolic acid are commonly used ingredients in skin care, but whether the two can be used together, there are different opinions, and it needs to be investigated in detail.

Kojic acid is derived from microbial fermentation, has excellent whitening effect, can block tyrosinase activity, inhibit melanin production, and make skin fair. Glycolic acid is a member of the fruit acid family, with tiny molecules, which can quickly penetrate the surface of the skin, promote keratin renewal, soothe the skin, and rejuvenate its luster.

As for whether the two can be compatible, it is necessary to check their chemistry and impact on the skin. From a chemical point of view, kojic acid is weakly acidic, and glycolic acid is also acidic. Use the two together, or cause local acidity to be too strong and irritate the skin. Those with sensitive skin are prone to redness, itching, and tingling.

However, if the skin is well tolerated and properly prepared, there is also a feasible opportunity. Try it at a low concentration first to observe the skin's reaction. When using it for the first time, apply a small amount thinly, and wait for the skin to adapt, then gradually increase the dosage and frequency. And the use interval should be long to give the skin a buffer.

In the skin care routine, after cleansing, apply toner first to balance the acid and alkali of the skin, and then use products containing kojic acid and glycolic acid in sequence. Using the two in combination may be synergistic. At the same time, whitening promotes keratin metabolism and makes the skin bright and smooth. However, you need to pay close attention to the skin. If there is any discomfort, stop using it immediately.

In short, although kojic acid and glycolic acid have skin care capabilities, their compatibility should be carefully selected according to the individual skin type to ensure skin health.