When ferulic acid was added to vitamins C and E, it doubled the skin's sun protection—jumping from 4-fold to 8-fold protection against UV damage. The combo also reduced sun damage at the cellular level (less DNA damage and cell death), suggesting real benefits against photoaging and skin cancer risk.

Researchers tested a topical solution containing vitamin C, vitamin E, and ferulic acid on skin exposed to solar-simulated UV radiation. They measured protection by tracking visible redness, damaged cells, and DNA damage.

Funding not disclosed in abstract