Review (5/5): Works gradually and looks very natural
Works gradually and looks very natural. Lead (active ingredient) is only a problem if you ingest it, not on your hair and scalp. I use about a teaspoon of solution after each shower once my hair is dry and comb it in. I was using it for about a month before I noticed results. Now I have a little gray but most of my hair has returned to it's natural (light brown) color. Have been using it for years now and love it!