original liquid liners are not waterproof. The new liquid last liners are basically everything-proof! haha. Seriously, I swatched these on my hands at work when we got the shipment, and it stayed on perfectly for 3 days. So thats 3 showers lady (and i'm a germaphobe) and 80 hand washes later. The only thing to remove them is makeup remover or makeup removing facial cleanser.
They're AWESOME