I’ve actually been using this clear mascara for a few years now.
I bought a few when my secondary school was extremely fussy about make up. This clear mascara makes your lashes more vibrant, and I suppose you could classify it as waterproof due to the fact that even if you go out in the rain with the mascara on, there isn’t really much of a smudge on your eyes.
I think this mascara costs about £2.99 from Superdrug, and I don’t think other brands do such a good high quality clear mascara!
It’s definitely cheaper than other mascaras out there, and it works out even cheaper if you use discounts like student discount, or with multi-buy offers!
In conclusion, I would definitely recommend it, especially if you’re going for a natural look.
Edit: Rimmel London has now got a new clear mascara that you can also use for setting your eye brows!