Nioxin System 1 1L Duo healthier it can be layered with

it can be layered with virtually any other American Crew styling product

type 2 and type 3 collagen

Fiber Grooming Foam is a lightweight hair product that provides long-lasting manageable volume with a medium hold and natural soft shine

reduces greasy hair appearance

Invigo Color Brilliance Mask

Nioxin System 1 1L Duo healthier it can be layered withNioxin System 1 1L Duo Pack includes: Step 1 System 1 Scalp + Hair Shampoo 1L Step 2 System 1 Scalp + Hair Conditioner 1L System 1 amplifies hair texture and protects hair against breakage. System 1 is specially formulated as a hair thickening treatment, delivering denser looking hair. It reduces hair loss due to breakage and strengthens the hair, while refreshing the scalp and delivering a healthy shine to natural hair with light thinning. How to use