

Not mentioned is the active ingredients in your sunscreen, many being endocrine disruptors like oxybenzone.
The ones that physically block with like titanium and aluminum compounds are best for not flooding your body and waters you swim in with hormone disrupting chemicals, especially damaging in coral reefs.
Consumer Reports is not a bad place to start.
There are toxin concerns in sunscreen too, some use endocrine disruptors like oxybenzone. Bad for you and where you swim.