On the mixed use of BHA and glycolic acid
The way of skin care and the combination of ingredients are related to efficacy and skin safety. Among them, the mixed use of BHA and glycolic acid has quite a bit to be investigated.

BHA, that is, salicylic acid, is fat-soluble, can enter hair follicles, clear oil, pass pores, and has good anti-inflammatory effect, often heavy on acne muscles. Glycolic acid is a fruit acid, water-soluble, small molecule, can quickly enter the surface of the skin, promote keratin renewal, brighten skin spots, and make skin smooth.

The mixed use of the two has complementary benefits. BHA attacks oil, inflammation, glycolic acid exfoliates and rejuvenates skin, and synergistically seems to effectively improve skin quality. However, when actually using it, you need to be cautious. Cover because it has the properties of exfoliation, mixed use or skin irritation. Those with delicate skin are prone to redness, swelling, tingling, and desquamation.

If you want to mix it, try it on a small scale first. Take a small amount of the product containing both, apply it behind the ear or under the chin, and wait for a few days to see if there is any discomfort. If there is no abnormality, you can gradually apply it to the surface, and the frequency should be low, once or twice a week at the beginning. When using, you also need to use heavy sun protection, because it makes the skin more sensitive to light.

Mixing BHA and glycolic acid may have good results, but the skin's tolerance is different. It must be cautious and gradual to protect the skin and enjoy its benefits, avoid the harm of excessive stimulation, and achieve a good state of skin care.