I'm 60, and from mostly Irish descent -- meaning I burn easily and don't really tan much. I've never been a beach-goer/sun-bather. The sun I get is just inciden

I'm 60, and from mostly Irish descent -- meaning I burn easily and don't really tan much. I've never been a beach-goer/sun-bather. The sun I get is just incidental to mowing the lawn, walking the dog, etc. The skin on my arms looks like a typical 60 year old -- spotted, thin, little elasticity. But lift up my sleeve and the skin of my upper arm and shoulder look like that of a 20 year old. My torso skin is young too, but it is weird to demonstrate that to young people.