I recommend Ryeo Heukwoon Root Nourishing Shampoo.

I am currently using Ryeo Heukwoon Root Nourishing Shampoo. I recommend this product to those with weak roots and limp, limp hair! It contains ginseng and fermented vinegar-soybeans, which I heard are effective for strengthening roots and adding root volume. I think it is a particularly pleasant product to use because the herbal scent isn't too strong. The price is also reasonable, so it is a great product that you can use without any burden. I recommend it to both oily and dry hair types.