Flavonoids in grapes delay in chemical reactions that kill skin cells and cause sun damage.
Those flavonoids in grapes protect the skin from ultraviolet (UV) radiation, the study to come out regarding wine’s effect on the skin.
When the skin is exposed to UVA and UVB rays, “reactive oxygen species” (ROS) activate and oxidize lipids and DNA, producing enzymes that finally kill skin cells by disturbing key cellular functions.
These flavonoids in grapes help to decrease formation of ROS in skin cells after exposure to ultraviolet rays.
Drinking wine, flavonoids are absorbed into the skin which protects against sunburns and sun damages from harmful rays.