Q: Can I use salicylic acid serum after using glycolic acid toner?

A: Use salicylic acid serum after using glycolic acid toner with caution. Glycolic acid is a fruit acid, which can promote the shedding of the stratum corneum and improve the skin's metabolism; salicylic acid can penetrate the pores to clean, control oil and improve acne. However, both are irritating to a certain extent.

If the skin is well tolerated, gently wipe or pat the face with glycolic acid toner, until it is fully absorbed, then take an appropriate amount of salicylic acid serum and apply it evenly, starting from the cheeks, avoiding the eye area, and gently massage until absorbed. However, during this process, if there is tingling, redness and other discomfort, it should be stopped immediately.

If the skin is more sensitive, it is not recommended to use the two in combination. Because of its superposition, it may over-irritate the skin, causing damage to the skin barrier and symptoms such as dryness, desquamation, and itching. You can test the local skin first, such as behind the ear or chin, and observe it for 24-48 hours. If there is no adverse reaction, then try to use it on the face. And the frequency of use should not be too high. 1-2 times a week in the early stage, and then adjust it appropriately according to the skin's adaptation.