I bought this hoping, just hoping something would work on my waterline... BUT this didn't. It is waterproof. I swatched it, let set, ran it under water, rubbed my finger over it, and it didn't budge. This is a great base, creases less than the Jumbo Pencil in Milk. This will probably work with someone who can get things to stay in their waterline, I just can't. It is on the more sheer side. It does need to be built up. For the price, it being waterprrof, I can't knock it.