Hello, it can be used, but usually if it's a cleansing formula, I would recommend it as
Encapsulated Salicylic Acid (Liquid, Timed-Release) would have a better effect. The reason is because it has a positive charge. Can stick on the thin skin after washing to work continuously if it is a formula left on the skin, such as a gel or cream
Complex Salicylic Acid (Powder, Water-Soluble) will give better results than the above type.