"I've always been a fan of Neutrogena and EltaMD sunscreens — it's what I use for my family and myself. Within the last six months, Neutrogena released its Beach Defense Water line. I like the stick versions, which look like deodorant sticks so they aren't messy and are good for anyone who likes to avoid sprays. The Neutrogena Beach Defense Sunscreen Stick With Broad Spectrum SPF 50+ (£7) in particular is formulated especially for those who break a sweat or hit the pool. While you still need to reapply, they give better protection and I think they are more for practical outdoor use. Almost everyone breaks a sweat when the sun is pounding, and unfortunately, more times than not, that can reduce the amount of sun protection you get. This tries to remedy that." — Dhaval Bhanusali, MD, board-certified dermatologist