Yes it is okay to add some conditioner to your developer. Everyone knows that lightener/bleach is bad for your hair and dries it out, but there are two kinds of lighteners/bleach, on the scalp and off the scalp. The on the scalp lightener already have some type of conditioning agents in it, not saying that it won't damage your hair but it is better if you use some high quality lightener and developer, as it conditions while it's lifts. You can also add some protein conditioner to your mixture you already have as it will be better for your hair and less damaging.
Mixing conditioner and bleaching powder will not lighten hair. Bleach requires an activatorsuch as developer in order for it lift the hair.
No, developer alone, (despite the volume), will NOT lighten hair. It will only open the cuticle. In order for lightening to occur, either cream, powder, or oil bleach must be added.
Mix one teaspoon of Lightening Powder with two teaspoons of 30v Creme Developer. Found the answer in the instructions. It was in the test strand section. I assume all lines will have the same detail for those who only need a little at a time.
for pre colured hair if dark brown you can use 2 no less colur with 30 vol and streaking powder
Yes, you can buy powder bleach at Sally's and mix it with 20 vol developer. Usually half and half. Then you can put that wherever you want to lighten. Keep checking on it until you achieve the desired color.
no
DO NOT RE-DYE IT!!!! Color does not remove color and any new growth you have will lighten but the ends will not. If you want drastic lightening, see a professional. If you just want to take the "intensity" out of the color, try washing it with Tide POWDER detergent. ONCE. Its not the best thing for your hair, but it will take the edge out of the color. Ex: if your "mahogany" shade came out looking a little too "grape popsicle".
Sally's beauty supply
You mix stabilizer powder and water
Yes, this lightener needs to be mixed with at least a 20 Volume developer.
The amount specified in the instructions for the product you are using.
No, conditioner is added to water to help mantain chlorine. Muriatic acid is used to lower pH or alkalinity.