My daughter's allergist recommended Neutrogena Sensitive Skin, and she has not had any reaction to it. The only problem is that the bottle doesn't say it is waterproof (it doesn't say it ISN'T waterproof either, though!). We also use the waterproof Neutrogena sunscreens, but the active ingredient is different. My DD has not had a reaction to those either, so we use the waterproof kind for swimming. As a PP said, the Sensitive Skin formula is titanium dioxide. Neutrogena has a new sunscreen called Ultra Sheer - it is not greasy going on, and my kids like that!