Good value shampoo

Since I have an oily scalp, I’ve tried all kinds of shampoos, from expensive ones to cheap ones. I’ve used everything from 50,000 won bottles to 4,000 won ones, but I didn't feel much of a difference. Of course, some people might notice a difference, but I didn't feel a significant one. I think for oily scalps, it's best to just use affordable products and wash frequently and thoroughly.

I bought a 1-liter bottle of Kerasis shampoo for about 4,000 won and I am satisfied with it.