BABY BUM SPF 50 SUNSCREEN SPRAY. Our convenient, travel sized sunscreen is 100% mineral based protection for your little ones. The spray applies and absorbs easily to face and body with a non-oily feel for UVA/UVB protection. TRUST THE BUM. What does that mean? It means trust us, the ones who live on the beach and need products that work on the most intense days in the sun. The simple truth is, when you make products to protect the ones you love, you make ‘em better.