Sort:  

skin type 1: 5 minutes each prone and supine position
skin type 2: 10 minutes
skin type 3: 15 minutes
skin type 4: 20 minutes
skin type 5: 25 minutes
skin type 6: 30 minutes

We have had awesome luck with coconut oil on our kids and ourselves. Just have to apply more frequently.
Quick story:
My boy got ahold of aerosol coppertone sport and sprayed it all over the bathroom mirror/counters. I recently framed the mirror and painted it. We were headed out the door so we were just goin to clean it up later. It got late so we did it in the morning. The paint was dripping off the frame around the mirror. From that point on I said no way to sunscreen. Only if used as a paint remover. Lol

yes i read that coconut oil are good as sun blocker. But her in the north... Hamburg, Germany I don't use anything. But sure if you traveling and your skin is not accustomed to the sun blocker are useful. But remember coconut oil is blocking UVB radiation too, if you going to take a quick sunbath don't use anything.

We spend a lot of time at the river here in Washington state US it gets hot here. 110* sometimes. Often over 100 for about a month or so. So it is a must to put something on or you will either be a lobster or very bored. 😉