The comparison between glycolic acid and salicylic acid
The key to skin care is glycolic acid and salicylic acid. The two have their own strengths and have different effects on skin care.

Glycolic acid belongs to the family of fruit acids, with small molecules that can quickly penetrate the surface of the skin. Its primary function is to loosen the adhesion between keratinocytes, make old keratin fall off, and make the skin look new, smooth and delicate. And it can stimulate collagen regeneration, help reduce fine lines, improve skin elasticity, improve uneven skin tone, and brighten skin color. For dry and sensitive skin, if used properly, it can gradually adjust the skin state, increase its hydration and luster.

Salicylic acid, a fat-soluble acid, is good for dissolving into oil. It is a good agent for oily skin and acne skin. It can penetrate deep into pores, remove oil and dirt that block them, and prevent acne and acne. At the same time, it has anti-inflammatory effect, can slow down skin inflammation, reduce redness, swelling and pain. It can also promote the healing of existing acne.

However, when using both, caution is also required. Although glycolic acid is mild, if the concentration is too high or used too frequently, it is easy to cause skin redness, tingling and desquamation. Sensitive skin should be tested first, starting from low concentration and gradually increasing the dosage and frequency. Salicylic acid is also irritating. High-concentration salicylic acid preparations should not be used without professional guidance, otherwise the skin may be damaged and the barrier function will be weakened.

In summary, choose glycolic acid or salicylic acid according to your own skin type and skin needs. Dry and sensitive skin, prone to glycolic acid gentle rejuvenation; oily and acne skin, salicylic acid is more suitable for oil control and anti-acne. Choose it carefully and use it reasonably to achieve the best condition of skin care.