Grey hair is a drama queen. It’s resistant. It needs extra love. If you’re covering 50% or more gray, add 10 to 15 minutes to your processing time. That’s right—totally fair. Your foe isn’t your hairdresser; it’s that stubborn white strand that thinks it’s too cool for pigment. Show it who’s boss by being patient.
A fun detail: the first gray hair ever recorded belonged to an Egyptian mummy. Yes, mummies had roots too. They probably didn’t dye them, but if they did, they’d have used henna and prayed to the sun god. You have better options. Use them wisely.
The Weird Smell Test
Your nose knows. When hair color is done processing, it releases a specific ammonia-like scent. It’s not pleasant, but it’s your signal. Smell that? Time’s up. Rinse immediately. Ignore the urge to scroll TikTok. Your hair is begging you.
Another fun fact: hair dye was invented by a French chemist named Eugène Schueller in 1907. He later founded L’Oréal. His first customers were Parisian actresses. They probably left the color on too long and had to wear hats for a week. Learn from their mistakes. Follow the timer.
Perfect Root Touch-Up: Ideal Time To Leave Hair Color On | ShunSalon
