3. Look to your eyes! If you have dark eyes, you should concentrate the lighter hues on the lower half of your hair. With blue eyes, it's a little more easier to go light all over.
"The reason blue-eyed woman can typically go lighter at the root area is because naturally, their base color is going to be lighter," Matt says.
"For brunettes, I think it looks best when they're super-light on the mids-to-ends."
4. Create dimension to make it look more natural. "If you're lifting your natural base color, I wouldn't go any lighter than two levels," he says. "For highlights, it shouldn't be any higher than three to five levels."
5. Avoid brassiness with Rez's solution. "Make sure your colorist lifts you to the lightest yellow before you're toned," he says.
"If you're not there, they're toning you to cancel unwanted orange tones that will eventually fade out. Orange is a strong tone because it has red to it so it does come back up."
6. Keep your hair healthy. But how? Daily masking and Olaplex. "Both in-salon and at-home, it works miracles," he says of Olaplez. "Hair can go next level with it. You can push the blonde envelope."
Go forth and go blonde!