factors having great inhibitory potential have been identified as retinoids ( retinol , retinal , retinoic acid , retinyl acetate ) , beta-carotene , riboflavin , ascorbic acid , copper , zinc , linoleic acid , p-hydroxy benzoic acid , butylated hydroxyanisole , butylated hydroxytoluene , disulfiram , and phenothiazine .
C0035339
retinoids
C0040845
retinoic acid