Moogoo Clear Zinc Sunscreen SPF40 for babies, contains zinc oxide & provides broad spectrum protection. Suitable for use on newborns & adults and even the most sensitive skin. Including eczema prone skin.Zinc Oxide acts like a reflective umbrella on the skin, reflecting UV rays away. MooGoo sunscreen suits people that are sensitive to sunscreen with UV filters and want a Zinc-based sunscreen that is not greasy. Both SPF & Broad spectrum tests have been performed on Moogoo sunscreen, additionally early waterproof testing has also been conducted.It shows that the sunscreen is waterproof for up to 40 minutes. However, it is recommended that you reapply any sunscreen after swimming as the mechanical action of swimming and drying can remove sunscreen.