Pravana Creme Developer is the best hair-moisturizing product that is specially designed to be used with Pravana Chromasilk colors to help lighten and enhance the look of just dyed hair. This product works wonders to lighten hair and also enhances the color of dyes being used without harshly damaging hair. His developer is free of harsh chemicals and parabens so it leaves hair soft and sleek. Pravana provides luxurious hair care colors and products for high-end salon professionals for low costs. Their team thrives on providing its' customers with all natural hair products using the most natural ingredients available to the beauty industry. Pravana's hair care and hair color products are always free of parabens and sulfates to leave hair moisturized and full of color and volume. 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).