Nioxin System 1 1L Duo color-treated 3️⃣ Leave on for 3-5

3️⃣ Leave on for 3-5 minutes to allow deep penetration

it helps to rebalance the scalp’s natural moisture levels

Deeply nourishing and smoothing infusion of essential nutrients

and effortlessly manageable

All while not weighing the hair down

Nioxin System 1 1L Duo color-treated 3️⃣ Leave on for 3-5Nioxin 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