How safe is it?

Product Description

 Shuts off at target color. Foolproof- the easy way to get rid of gray. Easy - comb in applicator. No mixing, no mess. Just comb in. Takes only 10 minutes. Gentle: No peroxide and no ammonia formula makes it the gentle haircolor. Unique comb-in applicator. Lets you pinpoint first grays. One application kit.

Hang tight. We're thinking.