Look for "color payoff" and "bleeding." Some blues are notorious for staining pillowcases and towels!

While you're at it, grab a color-depositing conditioner or a sulfate-free shampoo to keep that blue from turning dull.

Ready to shake things up? Switching to is more than just a color change—it’s a whole mood. Whether you’re aiming for a deep midnight navy, a vibrant royal blue, or a soft pastel sky, finding the right dye is the first step to your transformation. 1. Choose Your Shade & Formula

Necessary for pastels and bright cobalts.

If you have thick or long hair, always buy two boxes/bottles . Nothing is worse than running out halfway through.

If you’re looking for long-term commitment, look for "denim" or "blue-black" permanent shades. Just keep in mind that blue is a stubborn pigment to remove later! 2. Check Your Base

Most blue dyes (like Arctic Fox or Manic Panic) are semi-permanent. They don’t use harsh chemicals like ammonia, making them great for hair health, but they will fade gradually with every wash.