I'm happy now that I became allergic to hair dye after using it for decades. I LOVE my gray, mixed in with my dark. I even get compliments which makes it all worthwhile.

Henna's didn't color my grays 'cause my hair's too porous, but it sure gave it a great shine!

I used Revlon when I did it myself and I had no problems with it. If I remember, I colored my hair evey 6 weeks.

I always try to remember to read the labels too and somewhere I have a PETA list.