I'm in my mid/late 50s, and had grandparents from Ireland, that is, I'm light skinned. As a kid my brothers and I would compete who could peel off the longest c

I'm in my mid/late 50s, and had grandparents from Ireland, that is, I'm light skinned. As a kid my brothers and I would compete who could peel off the longest continuous strip of skin a day or two after going to the beach. Anyway, the skin on my exposed arms looks like "old man" skin -- lots of blotches, and more importantly not elastic. However, the skin that lives under my short sleeves is not only unblemished, it is as elastic as when I was a teenager. In short: yes, it will help against cosmetic damage as well as skin cancer. Bonus: the youtube channel veritasium did a video a few years ago where they use a UV filter on a camera to show (a) the effectiveness of sunscreen and (b) the damage which is visible in the UV years before it shows up in visible light. https://www.youtube.com/watch?v=V9K6gjR07Po https://www.youtube.com/watch?v=V9K6gjR07Po