For children under 6 months old we recommend consulting your pediatrician before applying sunscreen. For children over 6 months old we recommend the mineral based sunscreens in our Baby Bum ® line. These products have been pediatrician tested and are great options for our groms. https://www.sunbum.com/collections/plp-baby-bum-zinc-sunscreen
Also make sure that if you do take your little ones into the sun, that you cover them up with proper clothing (including a hat) and find them some shade whenever possible.