Got sunburned even with 2nd coating

I was hoping to love this sunscreen when I bought it. I bought this for my trip to Maui for me and my family. Since they talk about using coral reef sunscreen I bought this one. Well me , my daughter and my son got sunburned. We even did the 2nd spray after being out for 2hrs. We still got sunburned. Looks like I need to find another product that will give me coverage, coral reef safe and not get sunburned.

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