Clinical abstract from Journal of American Academy of Dermatology: Beauty from the inside out, improving your diet or taking supplements may lead to younger-looking skin
“… Antioxidants such as vitamins C and E, lycopene, green tea polyphenols, beta carotene, and cocoa flavanols have been shown to offer some protection from ultraviolet light-induced skin damage. These antioxidants can be found in vegetables and fruits, tea and certain types of chocolate. Supplements containing Polypodium Leucotomos, an extract of a Central American fern plant, or the probiotic Lactobacillus johnsonii have also been shown to offer some sun protection. Dr. Farris said supplements containing synergistic antioxidants have the potential to also reduce sun damage. A supplement containing a combination of beta carotene, lycopene, vitamins C and E, selenium and proanthocyanidins was shown to provide some protection against sunburn and damaging enzymes that break down collagen.…”\
Conclusion: Supplements containing Polypodium Leucotomos and Vitamin C have been shown to offer sun protection against ultraviolet light-induced skin damage.