Bleach powder and developer is usually measured in scoops, meaning you use the plastic scooper that comes with a tub of bleach powder. For a 1:1 ratio, you’d mix 1 scoop of bleach powder and 1 scoop of developer. The mixture will not look blonde; it should be blueish-white or blue. It also shouldn’t be too soupy or too thick. It should have a consistency like gravy. If you’re using it, now is the time to mix in the red gold color corrector. Follow the instructions on the bottle.
If you have dark hair, wait 20 minutes after applying the bleach to your ends before putting it on the roots. Keep a towel nearby to wipe bleach off your face or arms.
The bleach will cause your head to feel warm; it may sting. If it gets painful, wash it out immediately.
Avoid shampooing for 24 to 48 hours, if possible.
Toning your hair after bleaching it will help get rid of any orange in your hair. [7] X Expert Source Arthur SebastianProfessional Hair Stylist Expert Interview. 29 April 2019.
Some toners work on dry hair, while others can be used on wet hair. Read the instructions to be sure you are using it right.
Use a shampoo made for bleached hair to make sure all the toner is removed.