Have you ever noticed salons use heat caps? That’s not for fancy vibes. Heat opens your hair cuticles. A warm head means the color sinks in faster. A cold head means it sits on the surface.
Wella Demi Permanent Hair Color: Optimal Processing Time Guide | ShunSalon
So if you’re rushing? Wrap your head in plastic wrap and blast it with a hair dryer for 10 minutes. That’s like getting a 25-minute effect in half the time. Science is cool and makes you look like a mad scientist.
Quirky fact: some people swear by sitting in direct sunlight with dye on their head. You get a little vitamin D, and your hair absorbs color like extra thirsty straw. Just don’t fall asleep—you’ll wake up looking like a tie-dye accident.
