Piperine is the bioavailability enhancer found in black pepper — it increases the absorption of dozens of nutrients and drugs by inhibiting intestinal and hepatic CYP3A4 and P-glycoprotein. The famous example: piperine increases curcumin bioavailability by 2,000%. BioPerine® (Sabinsa) is the patented standardized extract (95% piperine) used in most combination supplements. Our research shows piperine genuinely enhances absorption, but this SAME mechanism means it can increase drug levels — it's essentially a pharmacokinetic modifier that affects anything metabolized by CYP3A4, which includes ~50% of all prescription drugs.
Piperine enhances bioavailability through: (1) CYP3A4 inhibition — blocks the liver enzyme responsible for metabolizing ~50% of all drugs and many supplements, reducing first-pass metabolism; (2) P-glycoprotein inhibition — P-gp is an efflux pump in intestinal cells that pushes absorbed compounds back into the gut lumen. Blocking it increases net absorption; (3) UDP-glucuronosyltransferase (UGT) inhibition — blocks glucuronidation (the process that inactivates curcumin, resveratrol, and other polyphenols); (4) increased intestinal blood flow — improves absorption rate. The net effect: more of the co-ingested compound reaches systemic circulation.
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.