I have heard of Amidol being all the way from white to black in color. My latest from Formulary is almost black. I think it ages kinda like wine...And like wine if you don't get it wet before use it works much better. Maybe that is why this stuff is so darned expensive. Realistically there are only two grades of Amidol, in my understanding, a hair grade (why it is named that I have no idea) and the photo grade. So if your hair is still relatively unaffected I would assume that you have the right stuff.