Let me introduce the shampoo I use. It is the Perfect Original Serum Shampoo from Mise-en-scène. I haven't dyed or bleached my hair, but it feels dry and brittle like a broom, so I place great importance on shampoo. I tried this product because it is said to contain seven types of nourishing oils. While I can definitely feel my hair becoming softer than other shampoos, I prefer shampoos that lather richly, so it is a bit disappointing that this product doesn't produce the amount of foam I want on my hair.