40 Volume Developer

Directions:
Demi-permanent: Mix any shade of Prorituals Hair Color Cream with equal parts 40 Volume Developer. Let process for 45–50 minutes. Lightens 4+ tones.

Semi-permanent: Mix any shade of Prorituals Hair Color Cream with equal parts 40 Volume Developer and Hydrate Treatment. Let process for 45–50 minutes. Lightens 4+ tones.