Suncream - What Factors to Consider?

 There's no doubt we have to consider that anithing under factor 30 may not be protecting our skin in the sweltering sun - but is that the only factor to consider?

If Hawaii has chosen to outlas all sun creams containing oxybenzone by 2021 in order to protect their fragile coral reef system - then what direction should we follow? We want to be protected - we want to enjoy the benefits of the healing powers of the sun, but we don't wan't to be responsible for any damaging effects on our beloved oceans. THANK GOODNESS we are not alone and there are some fantastic eco companies out there ahead of the curve when it comes to sea conservation.