Pearl drops anti aging (comes in one of those pump action thingies)was fantastic after I used one of those cheapo tooth whitening kits every other day for about a week or so. Recently having gotten into drinking decaffienated tea I realise it's not working as well so now I'm sticking to herbal teas. Don't overdo the tea/coffee!
I bought couple of tubes some time ago and I love it...It containes a red coloring agent that enhanced gum and tooth contrast. And it is excellent for removing stains from your teeth.