Peter Attia· MD
But the reason we tan is to create more melanin to protect our DNA. Yes. And it's only aesthetic in this day and age because it used to be if you were tan, you worked in the fields. So it was not a sign of prosperity and affluence. So it is only aesthetic in our current day and age. But yes, melanin is our own antioxidant. It's a very good antioxidant and that's how it works.