On whether it is appropriate to use both glycolic acid and salicylic acid
Fuglycolic acid and salicylic acid are both agents used in skin care. However, whether it is appropriate to use both is worth exploring.

Glycolic acid belongs to the class of fruit acids with tiny molecules, which can quickly penetrate the stratum corneum of the skin, promote keratin renewal, make the skin smooth, and can increase the hydration ability of the skin and make it moisturized. Salicylic acid, which is fat-soluble, can penetrate deep into pores, clean up oil, and inhibit Propionibacterium acne, which is beneficial for skin problems such as acne and acne.

If the two are used properly, their functions may be superimposed. For skin with thick keratin, oily, and acne-prone, glycolic acid first initiates keratin renewal, and salicylic acid is followed by pores to clean up stains, which may synergistically improve skin condition. However, be careful. Both are irritating to a certain extent, and the same use can easily cause skin intolerance. Those with sensitive skin may experience redness, tingling, and desquamation.

If you want to use glycolic acid and salicylic acid together, you should have a skin test first. Apply a little product behind the ear or on the inside of the forearm and observe for 24 hours. If there is no discomfort, you can use it cautiously on the face. And the initial use should be low in frequency, such as once a week, depending on the skin's tolerance. At the same time, strict sun protection is required during the day, because the two may increase the skin's sensitivity to ultraviolet rays.

All in all, the combination of glycolic acid and salicylic acid can be used for good results, but skin tolerance is essential. Users should observe the skin's reaction and adjust it in time to achieve the purpose of skin care and avoid the risk of skin damage.