How To Maintain Grays On Relaxed Hair, Cancel Out Yellow Tones & Avoid Overtoning Working with relaxed grays can seem tedious until you understand what you're working with. We’re breaking it all down: If you want to learn how to avoid overtoning, cancel out yellow tones (without the purple shampoo!) and maintain grays in between salon visits, keep on scrolling. 1. Working With High Porosity: What You Should Know We know the fear that comes with toning porous hair: Getting a splotchy, uneven deposit is never fun. According to 2022 #ONESHOT Winner and BTC Team Member John George...