I spend a lot of time on the water in the summer season and on the bikes.

I use a Patagonia sun mask whenever I am in the boat and I always lather on SPF 30 when I am biking.

Voodoo science?

I don't think so.

BTW Buy some vitamin D tablets and take one with your breakfast/Centrum.



Patagonia file photo. No sharkies lost their life according to the comment with this pic.