On the compatibility of BHA and azelaic acid
In the way of skin maintenance, the compatibility of ingredients is the key. Today's discussion on the compatibility of BHA (salicylic acid) and azelaic acid is really a concern for beauty lovers.

BHA has excellent fat solubility, can penetrate into pores, clear keratin, unblock pores, and has anti-inflammatory properties, which is effective for skin diseases such as acne. Azelaic acid is also extraordinary, can inhibit tyrosinase activity, block melanin production, brighten skin with light spots, and is anti-inflammatory and antibacterial, which is quite good for the treatment of common acne.

But can the two be used together? From its chemical point of view, BHA is acidic, and azelaic acid is also acidic. Although both have the power of skin care, the same use may cause skin pH imbalance. The skin has its own inherent acid-base balance, excessive acidification, or damage to the skin barrier, causing skin sensitivity, dryness, tingling and other symptoms.

Furthermore, there is overlap in the effects of the two, both are anti-inflammatory and beneficial to acne. The same use or the effect is too strong, and it cannot increase the effect of skin care and tire the skin.

However, if the skin has strong tolerance and has been gradually tried, you can try the same use. Try it on a small scale and at a low concentration first, and observe the skin's reaction. If the skin is no different, then increase it moderately and expand the scope of use. However, it is still necessary to pay close attention to the skin condition. If there is any discomfort, it should be discontinued.

In short, although BHA and azelaic acid have their own strengths, they need to be carefully chosen according to personal skin characteristics in order to achieve the best skin care and maintain skin health.