Kao THE ANSWER Super Lamellar Shampoo

Kao's lamellar technology delivers hydrolyzed keratin and repair ingredients during the cleansing step, so your hair gets treatment benefits while you're shampooing. This is more efficient than traditional shampoos that just clean and leave treatment to the conditioner.

It's designed to work as a system, but you don't have to. The shampoo delivers keratin on its own. The matching treatment adds ceramides and more keratin, so using both gives better results, but you can use other conditioners if you prefer.