Sunology Natural Sunscreen, Kids, SPF 50 A natural, chemical-free sunscreen, Sunology Natural Sunscreen, Kids, SPF 50 ($15) uses a mixture of titanium dioxide (7.5 percent) and zinc oxide (10 percent) to keep skin safe. The highly rated lotion is available in a travel size for families on the go. Sunology Natural Sunscreen, Kids, SPF 50 $15 from amazon.com Buy Now