But as I was allergic to all sunblocks (probably still am), it's what I had, so I took a hint from an old Southern neighbor of mine, who instructed me in the ways proper ladies are not to get a tan, so you get in the habit of limiting your sun exposure.
That and coconut oil did pretty well.
Of course it did mean if I was vacationing on Jekyll Island midday was shopping and tea time. But that's not so hard to take.