Thinkbaby Thinksport Sunscreen is a non-toxic sunscreen that has broad spectrum coverage (UVA & UVB) SPF 50+ and is water resistant up to 80 minutes. It is really easy to apply, absorbs into the skin well and has a non-oily feel to it. Thinkbaby sunscreen is a physical barrier sunscreen (mineral based zinc oxide 20%) which means it works immediately upon application. It is not necessary to apply 30 minutes before you are exposed to sunlight as is the case with chemical sunscreens that have to absorb into your skin to work. Thinkbaby and Thinksport are a customer favourite at Cheeky Monkey!