African Prune Herbal Supplement contains three compounds that relieve the symptoms of benign prostatic hypertrophy such as frequency, urgency and getting up at night. Phytosterols, triterpenes and ferulic acid esters are the three compounds that make African prune effective for BPH. Phytosterols compete with androgen precursors thus limiting androgen synthesis. They also inhibit prostaglandin synthesis which reduces inflammation. The triterpenes inhibit inflammation. Ferulic acid esters reduce the cholesterol content of the prostate, which limits androgen synthesis.