On whether the combination of glycolic acid and BHA is appropriate
The way of skin care and the combination of ingredients are related to the effect and skin safety. The combination of glycolic acid and BHA is often studied by everyone.

Glycolic acid belongs to the class of fruit acids, with small molecules, can enter the skin smoothly, quickly promote exfoliation, rejuvenate the surface of the skin, make the skin smooth, uniform in color, and help collagen regeneration, slow wrinkling and anti-aging. BHA is salicylic acid, which is fat-soluble, can penetrate hair follicles, purify fat and control oil, inhibit acne and reduce inflammation, and is beneficial to oily skin and acne muscles.

However, when the two are used together, the advantages and disadvantages coexist. The advantages are synergistic. Glycolic acid rejuvenates from the outer layer of the skin, and BHA forces from the oil of the hair follicles. The two-pronged approach makes the keratin metabolism smooth, controlling oil and suppressing acne, and rejuvenating and brightening the skin. However, its disadvantages are also obvious. Both are exfoliating. When used in combination, the skin is stimulated by a sudden increase. Those with delicate skin may cause redness, itching, tingling, and damage to the barrier. In the long run, skin sensitivity is prone to growth.

Therefore, if you want to use glycolic acid and BHA together, you should do it with caution. Test skin sensitivity first, try it on a small area of skin, and observe its reaction. If there is no discomfort, you can gradually increase the scope and frequency of use. At the beginning, it is recommended to use low concentration and low frequency, and then make adjustments when the skin adapts. And daytime protection is very important, both of which increase skin photosensitivity. Sunscreen must be applied to avoid direct sunlight to prevent damage such as pigmentation.

In summary, the combination of glycolic acid and BHA can achieve good results, but there are also risks. According to your skin type, be careful to take care of your skin and be safe.