Pravana Creme Developers 20 Volume 33.8 fl oz

What it is: Specially formulated for use with Chroma Silk Hair Color. What it does: Pravana Creme Developers, is specifically formulated for use with ChromaSilk Hair Color and it is the most advanced formula for hair color and lightener processing. What else you need to know: ChromaSilk Permanent and Demi Permanent Creme Hair Color comes in a 90ml (3 oz) tuve and is mixed at a 1:1/12 ratio of creme color to Pravana Creme Developer (3 oz color to 4 1/2 oz developer).