I'm not sure what to think about that. I live in CO and people here that don't sunscreen are so much more damaged than others I know in different states. It's drastically obvious. So I sunscreen my kids like crazy. I keep thinking that I'm at least giving their adult selves the option to look 50 at age 35 if they decide to quit using sunscreen religiously. Unsure if this is the best approach. Their doctor loves it though.