How to Color Gray Hair

Buy one bottle of developer and two applications of color sold separately. Buy the tubes not the boxed dyes.
Add one of the color tubes to your hair roots.
Let it sit for 25 minutes without the developer added.
Rinse out the color.
Mix the other color tube to the developer.
Place this mix all over your hair.
Let it sit for another 25 minutes.
Rinse out.
Gray hair should be gone.