If your hair isn't light enough, blue dye can turn green (blue + yellow = green). You may need to bleach or use a toner first. 3. Pro Tips for Buying
If you have thick or long hair, always buy two boxes/bottles . Nothing is worse than running out halfway through. buy blue hair color
While you're at it, grab a color-depositing conditioner or a sulfate-free shampoo to keep that blue from turning dull. If your hair isn't light enough, blue dye
Look for "color payoff" and "bleeding." Some blues are notorious for staining pillowcases and towels! Pro Tips for Buying If you have thick
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.
Blue is a "cool" tone, meaning it’s picky about what’s underneath.