Sun factor 50?

We use factor 50 when we go to the beach but not every day ( probably should,here in Australia I suppose ) There is one put out by the cancer council here. Aldi makeup has some sun protection inbuilt and I use that every day. Not good enough for really hot sunny days,though. My husband rarely wore it and ended up with a melanoma and had to have a huge slice of his face taken out so now he is very,very careful and always wears hats in the sun. He was lucky to have a fantastic surgeon who was able to match a skin graft from his chest so now it is hardly noticeable. Life and death stuff, though. You can’t muck around.