Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin - Lin, F H; Lin, J Y; Gupta, R D; Tournas, J A; Burch, J A; Selim, M A; Monteiro-Riviere, N A; Grichnik, J M; Zielinski, J; Pinnell, S R (J Invest Dermatol, 2005)