I would like to recommend the summer shampoo I use.

As someone with an oily scalp, I think this shampoo is the best. I have used several shampoos before, but they were often useless because my hair would get greasy quickly after washing, or it would even start to smell before it dried. So, I discovered this shampoo after trying various options. I heard that products from foreign companies are made according to the hard water conditions abroad, so they aren't suitable for use in Korea. I think that's why my hair got even oilier. When I looked up Kerasis, I found out it is a product made in Korea. I highly recommend this to anyone whose hair returns to its pre-wash state quickly after washing!