The skin of study participants who consumed lots of grapes developed an increased resistance to UV light.Grapes contain polyphenols, good stuff for repairing skin and fighting inflammation.After their grape adventure, biopsies revealed less skin-cell damage from UV light.
The researchers also found that a topical application of a grapeseed extract containing the polyphenol proanthocyanidins inhibited the formation of sunburn cells.
https://bigthink.com/surprising-science/grapes-uv-protection?rebelltitem=1#rebelltitem1