Leveritt doesn't mince words: "We showed people what they looked like in ultraviolet and wondered aloud if they wanted to put on some damn sunscreen already."
The video first compares how we typically perceive people to what an ultraviolet camera shows — the latter can pick up on signs of aging that are imperceptible to the naked eye.
The video then shows how polarized glasses — designed to block UVA and UVB rays — show up as black to the ultraviolet camera. The video's subjects are invited to slather on sunscreen, which also shows up as black thanks to its UV-blocking properties.
To learn more, read Julia Belluz's rundown of common myths and questions related to sunscreen.