Ion Sensitive Scalp 30 Volume Creme 9% Developer, 128 Fluid Ounces

Sensitive Scalp 30 Volume Creme 9% Developer is a hair developer that contains ionic buffers and conditioning wheat germ protein to help guard against scalp sensitivity. It can be mixed with any permanent hair color or lightener when the directions call for 30 Volume hydrogen peroxide. It can be applied with a bottle or bowl and brush. It ensures stronger, smoother, healthier hair during and after the hair coloring process. Mixes easily with chosen hair coloring product when lightening up to 3 levels.

This is nearly full (see 2nd pic for mark indicating level).