When it comes to the use of glycolic acid and salicylic acid, it is often studied whether glycolic acid and salicylic acid can be used together. Both are agents used in skin care, but their properties are different, so they should be used with caution.

Glycolic acid is a fruit acid or the like, with tiny molecules that can quickly penetrate the stratum corneum of the skin. Its function can loosen the adhesion between keratinocytes, make the old and waste keratin fall off, the skin is smooth and delicate, and can promote the production of collagen in the dermis, make the skin firm and elastic, and also help the skin's metabolism. It is good for dull and rough skin.

Salicylic acid is fat-soluble and can penetrate deep into the pores. It can clean up the blocked sebum in the pores, inhibit the growth of Propionibacterium acne, has a significant effect on acne, acne and other skin problems, and has anti-inflammatory properties, which can slow down skin inflammation.

However, the use of both has advantages and disadvantages. The advantages are strong in synergy. Glycolic acid exfoliates the skin and salicylic acid penetrates into the pores. The two are complementary, which can more effectively clean the skin and improve the skin. For oily and acne skin, it may better solve the problems of clogged pores and inflammation.

However, the disadvantages should not be underestimated. Both have a certain degree of irritation, and when used together, the skin is stimulated sharply. If the skin is already sensitive, or has poor tolerance, it is easy to cause skin redness, tingling, itching, and even discomfort such as molting. In light cases, menstruation can be slowed down, and in severe cases, the skin barrier may be damaged, resulting in long-term fragile and sensitive skin.

Therefore, if you want to use glycolic acid and salicylic acid together, check your own skin condition first. Those with strong skin tolerance can try low-concentration products, from less to more, from sparse to dense. If you feel uncomfortable during use, stop quickly. For sensitive skin, it is advisable to consult a professional first when using it with caution. The way of skin care is more appropriate, and it is better to not superimpose strength, so that the skin is safe and healthy.