Review on 🌈 Wella ColorCharm Hair Developers: Enhancing Hair Coloring Results by Kim Thomas

Please be careful when using. DO NOT leave it in your hair for more than 25 minutes no matter what anyone tells you unless you are at a salon or professional. And I don't mean professionally since you've bleached your hair before, I actually mean you know what the ingredients do and how they affect your hair. If you have treated your hair with henna, BE CAREFUL. If you have dye in your hair, be careful. Leaving this on dry, damaged, treated hair will fry them. THAT'S STRONG. My hair is undyed and "virgin" and I used it with Wella Bleaching Powder and left it on for less than 20 minutes, my ends were still toasted. But damn, my hair is almost snow white. Be kind to your hair, ask for help and apply coconut/olive/argan oil to your hair before and after treatment. So the day before and after flushing and the next 2-3 days.