LG bamboo salt facial cleanser. Around 20 yuan. Carrefour and other large supermarkets sell them. General Korean cosmetics stores also sell them. The effect is very good. The effect is very mild. It's comfortable not to be tight after washing. Neutrogena acne cleanser. Around 20 yuan. It's also very cheap. Because it contains 2% salicylic acid. So the acne effect is very good. Salicylic acid is the most effective pharmaceutical ingredient for treating acne. Salicylic acid is contained in general acne products. The optimum concentration is 2% to 5%. I use pure salicylic acid emulsion. 5% concentration. The effect is really good. The doctor prescribed it for me when I went to the dermatology department of the hospital to see acne, and it was prepared in the pharmacy room of the hospital. The effect is immediate. Of all the facial cleansers I have used, these two have the best effect. Lingke Keli's facial cleanser contains salicylic acid, but the concentration is too low. Basically, it didn't work. After use, it is still dry and peeling. Not recommended.