N. COLOR SHAMPOO＆TREATMENT

I'm so glad I bought this! I’m only using the silver shampoo, and I like how it prevents my hair from yellowing. My hair color fades quite fast. Even hair dyes that prevent yellow-ness like THROW lasts 3-10 days, and I hated how my hair turns bright yellow all the time like a Japanese punk. This time, it’s been about a week since I started using this every day after I got my hair color done, and I feel that it keeps my ashy hair color! And I feel like my hair is getting darker!! Apparently the more frequently you use this, the more color it goes in the hair. By the way, as a shampoo, out of 5 I say Foaming: 3 Refreshes Scalp: 1. Smooth after blow-drying: 3. Scent: 1.