Nioxin System 2, 4, 5, or 6 Cleanser 1gallon
(Select System Number)
Thank you for your order.
Unfortunately, Nioxin gallon size are discontinued
We will replace it with four one-liter bottles at no extra cost.
3.75 liter = 1.00 gallon
4.00 liter = 1.06 gallon
You will be getting a little bit more plus the added benefit of easier maintenance in separate bottles.
Thank you