When using two skin care ingredients, salicylic acid (Salicylic Acid) and glycolic acid (Glycolic Acid), many physicians and beauty experts say that it is advisable to use salicylic acid first.

Because salicylic acid is fat-soluble, it can penetrate deep into the pores, clean up the oil and dirt accumulated in the pores, and dredge the pore channels. And it has anti-inflammatory effects, can relieve skin inflammation, and pave the way for the absorption of subsequent skin care ingredients.

Glycolic acid is water-soluble, and its molecules are small, which can quickly penetrate the surface of the skin, promote the metabolism of the stratum corneum, and rejuvenate the skin. If you use glycolic acid after salicylic acid cleans and improves the skin environment, the two complement each other. Salicylic acid first opens the path for glycolic acid to absorb the skin, and glycolic acid then plays the role of renewing the cuticle and brightening the complexion. Using it in this order can better play the synergistic effect of the two, so that the skin can reach a better state, making the skin delicate, smooth and healthy.

If the order is reversed, glycolic acid first updates the stratum corneum, and the skin is in a relatively sensitive and open state. At this time, using salicylic acid may cause insufficient tolerance of the skin, which is easy to cause irritation, redness and other discomforts. Therefore, adhering to the method of "Use Salicylic Acid Before Glycolic Acid" is a good strategy for skin care.