We generally don't do sunscreen. Nor do I make us 'cover up' nor avoid the sun at all... The only time we really do sunscreen is when we're going to be outside at like the beach, swimming *ALL* day... and that doesn't happen very often. But, we're lucky in that none of us really burn. We all tan nicely and end up very dark by the end of the summer. I know some people think thats bad, but whatever. The number of sunscreens that are rated 'good' by the EWG AND which don't have nanoparticles in them is tiny. I compared lists, and there are a whopping two both of which are big $$:
Jason Natural Cosmetics:
Sunbrellas: Mineral Based Physical Sunblock, SPF 30+
Earth’s Best: Sunblock Mineral Based, SPF 30+
Both have tested negative for nanoparticles and both got a '2' from EWG. Those are, IMO, your best bets if your going to be using sunscreen. I have one of each on order...
So, personally, I'm not sold on the overall safety of most/any sunscreens. And honestly, the more we tell people to lather on the sunscreen, the more suncancer rates seem to climb. So... whatever. Humans survived for millenia w/o sunscreen, and hopefully we will too. Like I said, I do have the two from jason on order, and we'll give'm a try, but I can't imagine using them (or any sunscreen) on a constant, daily basis. But thats me and my comfort level.