>>1963976Chemical sunscreens all readily absorb into the body through the skin. The FDA is in the process of making new guidelines for approval and labeling of chemical sunscreens because of that. They haven't proven that chemical sunscreens cause problems once absorbed systemically, but in the mean time it's better to not risk it, right?
Physical/mineral sunscreens (aka zinc oxide and titanium dioxide, even though zinc oxide is a much more effective UV blocker) don't absorb through the top layers of skin, and even if they do get into the body, they're basically completely inert. Pic related.
Zinc sunscreens are safer but the downsides are they're harder to spread, leave a white tint on your skin (because it's literally zinc oxide powder suspended in oil), and they're much harder to clean off. But they last longer since they don't break down in the sun, unlike chemical sunscreens, so that's a catch 22. Pic related is what I've been using but I'm going to try a few different ones to see what works best.
>>1963961Maybe he's looking for specific recommendations for different products? I know I've gotten some UPF shirts that sucked major ass and were absolute dogshit quality.
