"On the Combined Use of Glycolic Acid and Mandelic Acid"

If you want to investigate whether it is appropriate to use both glycolic acid and mandelic acid, you should carefully investigate the properties of the two. Glycolic acid belongs to alpha-hydroxy acid, which has a small molecule and strong permeability. It can quickly enter the deep layers of the skin. The exfoliation effect is significant, which can make the old and waste exfoliation on the surface of the skin fall off, make the skin rejuvenated, and the color must be brightened.

Mandelic acid is also an alpha-hydroxy acid, but its molecule is larger than that of glycolic acid. It is relatively mild in nature, not only has the effect of exfoliating, but also has good effects in antibacterial, improving acne skin, etc., and can soothe skin inflammation.

If the two are used together, caution is required. Glycolic acid has strong penetration, mandelic acid is relatively mild, and may be complementary when used together. Moderate combination can improve skin roughness, dullness, and mild to moderate acne problems, or have a good effect. However, those with delicate skin may be intolerant. Use the two together, the concentration should be low, and it needs to be tried on a small area first to observe the skin reaction. After there is no discomfort, the scope of use can be gradually expanded.

In short, the combination of glycolic acid and mandelic acid has advantages and disadvantages. Users should be cautious according to their own skin conditions to achieve the best skin care environment and avoid the risk of skin damage.