There’s a fair amount of research to show that the clear gel that fills the thick leaves of an aloe vera plant can be used to help with the healing process of a sun burn.
A few older peer-reviewed studies have shown evidence that aloe vera is beneficial in healing first- to second-degree burns, which include mild to moderate sunburns.
Aloe vera can also help to moisturize the skin and prevent the peeling that sometimes happens with sunburns.