DHC's Eyelash Tonic is a nourishing gel for your eyelashes. It conditions lashes to strengthen them, thus reducing breakage. The product can be used alone or under mascara. DHC recommends applying it at night also, but I never liked the idea of putting something on my eyelashes before going to sleep; I was worried it would get into my eyes and irritate them. Anyway, this really made my lashes feel good (you can get away with wearing cheap mascara over it, if that's all that's handy), but I don't wear mascara every day, and I was forgetting to apply this. So, I wound up using this eyelash tonic to tame my brows. That's right. It does a great job of conditioning eyebrows and keeping them in place - without making them look spiky or sticky. I could probably buy a cheaper product for that in the drug store, but the ingredients (aloe leaf juice, japonica extract, willow bark extract, olive leaf extract, and ginseng root extract, to name a few) in this are worth paying a little extra for. The product is long lasting, and it is not overpackaged. There is no selection - it's just a clear gel that comes in a mascara size tube.