Look, I get it. We’ve all been distracted or thought, “Five more minutes won’t hurt.” But your hair has a memory. That one time you left bleach on for an hour? It shows up later as frizz and breakage. Color is a commitment, and damage is a long sentence with no parole.
Next time, set two alarms: one for the recommended time, and one for five minutes before that—just in case you need to rinse early. And if you ever feel like experimenting, do a strand test first. Your hair isn’t a canvas for your impatience. Treat it like the delicate fabric it is, not a pair of jeans you’re over-dyeing in a bathtub.
So, is it bad to let hair dye sit too long? Yes, unless you love the smell of burning protein and the look of straw. Save yourself the therapy. Rinse on time.
