I use Jason's Sunbrella Kid's SPF 46 sunscreen. It has the advantage of being made of all natural ingredients and is the first sunscreen I've ever used that does not summon the pimple fairy to my face. It blocks UVA and UVB and is waterproof. It also has a lighter, more pleasant smell, reminds me of the old Coppertone SPF 6 my sister used in the 70s.