Larsucosterol (DUR-928) trimethylamine, a cholesterol metabolite, is a potent liver X receptor (LXR) antagonist. Larsucosterol trimethylamine as a potent endogenous regulator decreases lipogenesis. Larsucosterol trimethylamine inhibits the cholesterol biosynthesis via decreasing mRNA levels and inhibiting the activation of SREBP-1.