Main features:Tri-Lightening Technology with anti-yellow molecules that permits to obtain ultra-fair blonde hair. It can bleach until 7 tones. It is very versatile because you can use it mixed in different proportions and in different ways.Suggestions for mixing:mix with Welloxon Perfect 6%, 9% or 12%, or with Colour Touch Emulsion 1,9% or 4% in a non metallic bowl. Mix with a relation 1:1,5 until 1:2 (not 1:1). If there is contact with scalp (for total applications or application on roots), use a hair activator with a maximum of 6%.Leave on time:apply evenly the discolour on unwashed hair. The leave on time depends on your hair's condition. Check your hair every 5-10 minutes. Maximum leave on time is 50 minutes. If you use the product for the first time: spread the product along your hair, from the middle until ends, and then on roots.After treatment:rinse off carefully with lukewarm water and shampoo. Then, apply BLONDOR BLONDE SEAL & CARE to obtain more brilliance and protection.