Sinapic acid is a potent anti-oxidant used for the treatment of cancer, infections, oxidative stress, and inflammation; its anti-cancer mechanism works through the regulation of multiple proteins (CTNNB1, PRKCA, CASP8, SIRT1) and cytochrome enzymes (CYP1A1, CYP3A4) [153]. This evidence concerns the gene CYP3A4 and cancer.