Bests & Worsts Reviews from Amazon

I'm a dermatologist who likes to run sprints as an exercise. I've tested a bunch of sunscreens because so many burn my eyes when I run. My eyes are quite forgiving with this sunscreen. That being said, I noticed a few other reviewers whose eyes have burned. In my opinion, they are probably just unlucky to be sensitive to this sunscreen. In short, some people will have eyes that burn and some won't. This applies for all sunscreens. You've got to find one that you tolerate. The same rationale applies for rashes or acne. I recommend different sunscreens for different purposes. This one happens to be a little heavy for daily use but it does the job during exercise as well as any that I've tried. In case you're interested, I apply it ridiculously thick about 45 minutes before I go out. I look like a freak around the house but it gets absorbed by the time I step out the door. I recommend reapplying every two hours. For swimmers, reapply every 30 minutes if possible because "waterproof" laboratory testing is done in a bathtub. It's a lot different in the pool or the ocean. On the technical side, "Helioplex" refers to photo-stabilization, which means that it resists breaking down when the sun hits it. Yes, you heard right--many sunscreens break down in sunlight! One more word of advice not related to this sunscreen, so I can feel I'm honoring Hippocrates and his oath: Even the best sunscreens are not perfect in filtering or blocking ultraviolet light. So try to go out after 4 PM in the summer. Or, if you prefer, get out there at 6 AM and be back home by 9 AM. If you're a hiker, get a hat with wide rims from Sun Precautions or another company called Sunday Afternoons. They also sell shirts that block ultraviolet light and cool you off. I would post their websites but Amazon doesn't allow links on these reviews. Last thing--- Like all dermatologists, I get a bunch of sunscreens for free from manufacturers. But I buy Neutrogena Sport Face with my own money for my workouts on the track.