I've been allergic to chemical sunscreens all my life (I'm pushing 40). Every time I found a physical sunscreen on the market, with titanium dioxide as the main ingredient, it wouldn't be waterproof. I'm extremely pale, and so hyper-allergic that even touching a doorknob from someone who's wearing sunscreen can put me in the ER. When my husband found this product, I was overjoyed. I have 2 children, and my whole family uses this religiously during the summer months. I've never had a break-out, neither has my kids. This is a thick sunscreen, so if you apply too much, your skin will have difficulty "breathing," as it were, leading to itchiness (I wonder if this is what happened with some of the negative reviewers). Also, like any sunscreen product, you must diligently reapply (e.g. a 60 spectrum must be applied every 60 minutes). I can literally apply this sunscreen all day long and not even tan. It is an absolute miracle sunscreen for someone like me who's spent much of her life avoiding pools, the beach, etc. due to the allergic reactions. Now, I can play in the pool with my kids knowing they're protected and I won't break out in hives from touching them. My only complaint is that the sticks are too small. I wish they made larger ones. We run through these far too quickly. PLEASE don't stop making this product! It's a life saver for hyper-allergic people like me!