Found on @MatrixHaircolor
Found on @MatrixHaircolor

If you follow @MatrixHaircolor on Instagram, you know they love to provide suggestions for formulas that can achieve the shades being sported by some of Hollywood's loveliest.

This blonde-to-red change on Emma Stone can be closely approximated with this Matrix formula:

7WN + 7GC 10 volume on roots

8C + 7GC (10 volume) on ends

"And don't forget clear if you want it lighter on ends."--@MatrixHaircolor