I was bored, so I decided to scroll back through all my rainbow hair phases and turn them into one quick video. From mixing neon dyes to applying them and revealing each finished look, you can see me ...

Pro tip: If you’re hesitant to go for a full-blue moment, match your shade of blue to your skin’s undertone, says Hernandez. “Cool and neutral skin tones can wear most cool-toned blue hair colors, ...