I was worried about the roughness of my skin, so I used another company's famous keratin care. My skin turned red and became very sore. For a while, I was reluctant to use peeling serums, but I saw this product in a magazine and tried a sample, and was amazed at how it felt like a moisturizing serum. However, it reduced the roughness of my skin, so I can feel a good peeling effect. I will continue to use it!