MG's skin has reacted badly to every sunblock available in stores and I really have tried every possible brand. I mentioned this to our allergist who quickly recommended Total Block COTZ SPF 58. Unfortunately I've only been able to find it online and it's quite expensive but it's 100% worth every penny. I've been using it on MG for a month now and her skin loves it! This is a product I can now highly recommend for all those with sensitive skin! It's active ingredients are mineral based, utilizing ultra-micronized titanium dioxide and zinc oxide. I wonder why it is that so many of the kids with nut allergies also have super sensitive skin... interesting. Let me know if you've also tried this brand and what you think. Now we are off to safely bask in the sun!