Piperine (Piperidine Amide · Bioavailability Enhancer · BioPerine · Thermogenic)
| Compound | Piperine |
| Chemical class | Alkaloid — Piperidine Amide (1-Piperoylpiperidine) |
| CAS | 94-62-2 |
| Primary source | Piper nigrum (black pepper, dried fruits), Piper longum (long pepper) |
| Key applications | Bioavailability enhancer (BioPerine®), thermogenic, anti-inflammatory, CYP3A4/P-gp inhibitor |
| Claim strength | High |
| Typical form | Piperine 95–98% isolate; black pepper extract standardised to piperine |
| Buy from Herbuno |
Piperine 95% Extract Powder → Piperine 98% Powder (Black Pepper) | High-Purity Isolate | Piper nigrum → |
Name origin: From Piper (the pepper genus). Piperine is an amide alkaloid — piperidine (a six-membered nitrogen ring) linked via an amide bond to piperic acid (the conjugated diene acid chain with a methylenedioxy phenyl end). It is the primary pungency compound of black pepper (Kali Mirch, Maricha). Traditional use: Black pepper has been used as a medicinal spice across Indian, Chinese, Greek, Roman, and Arab medicine for over 4,000 years — for digestive stimulation, antimicrobial properties, and as a “bioenhancer” for other medicines. The concept of Trikatu (three pungents: black pepper + long pepper + ginger) in Ayurveda reflects the traditional understanding that piperine enhances the absorption and efficacy of co-administered herbs. This is one of the most precise pharmacological predictions in traditional medicine — the bioavailability-enhancing mechanism of piperine was validated scientifically in the 1980s–1990s. Research trajectory: Piperine has one of the strongest evidence bases among spice alkaloids, with human RCTs confirming bioavailability enhancement of multiple co-administered compounds (curcumin, CoQ10, selenium, beta-carotene, resveratrol), thermogenic effects, and anti-inflammatory activity. The commercial BioPerine® ingredient (standardised piperine from Piper nigrum) has been the subject of multiple clinical studies. Commercial source: Piperine 98% and Piperine 95% from Herbuno. See sourcing options below.
Evidence for Piperine Applications
Bioavailability enhancement (CYP3A4 and P-gp inhibition) — High evidence: Piperine inhibits CYP3A4, CYP1A1, and P-glycoprotein (P-gp, the efflux transporter), significantly increasing oral bioavailability of co-administered compounds. The landmark Shoba et al. 1998 RCT demonstrated that 20 mg piperine increased curcumin bioavailability by 2,000% in healthy humans. Similar bioavailability enhancement has been demonstrated for: CoQ10, EGCG, resveratrol, selenium, beta-carotene, and multiple pharmaceutical drugs. This is now standard formulation strategy — piperine at 5–20 mg co-administered with poorly bioavailable actives. Claim strength: High.
Thermogenic and weight management: Piperine activates TRPV1 channels (same receptor as capsaicin, but lower potency), stimulates beta-3 adrenergic receptors, and inhibits adipogenesis via PPARgamma. Human studies show modest thermogenic effects (metabolic rate increase 2–5%). Relevant for weight management supplement formulations as an adjuvant thermogenic. Claim strength: Moderate.
Anti-inflammatory and antioxidant: Piperine inhibits NF-κB, TNF-α, and COX-2 across multiple inflammation models. Antioxidant activity via radical scavenging and Nrf2 activation. Human anti-inflammatory data are limited for piperine specifically; most clinical evidence is for the bioenhancer role. Claim strength: Moderate.
Neuroprotective and antidepressant: Piperine inhibits MAO-B (monoamine oxidase-B), increasing dopamine and serotonin availability. Animal models show antidepressant-like activity and cognitive enhancement. The MAO-B inhibition is pharmacologically relevant at supplement doses — formulators should include interaction advisory for monoamine-active medications. Claim strength: Moderate.
Piperine 95% Extract Powder →
Piperine 98% Powder (Black Pepper) | High-Purity Isolate | Piper nigrum →
Browse Standardised Extract Powders →
Dosage & Formulator Specification
Bioavailability enhancement: 5–20 mg piperine per dose (most clinical studies use 5 mg or 20 mg). The Shoba curcumin RCT used 20 mg. For routine supplement co-formulation, 5 mg piperine per serving is the standard BioPerine® inclusion level. Thermogenic/anti-inflammatory: 10–40 mg/day piperine in human studies. Piperine 95% from Herbuno is the appropriate specification for supplement grade; 98% for premium isolate applications. Specify HPLC piperine content and alkaloid profile on CoA. Piperine has a long shelf life (2+ years) in dry powder form. Note: piperine is a potent CYP3A4 inhibitor — this drug interaction potential must be communicated for supplement blends; it can substantially alter the pharmacokinetics of co-administered pharmaceutical drugs metabolised by CYP3A4.
Frequently Asked Questions — Piperine
Why does piperine increase curcumin bioavailability by 2,000%?
Curcumin has extremely poor oral bioavailability (<1% without enhancement) because: (1) it is poorly water-soluble; (2) it undergoes rapid hepatic conjugation (glucuronidation, sulfation); (3) it is an intestinal P-gp substrate, effluxed back into the gut lumen. Piperine addresses mechanisms (2) and (3): it inhibits UGT/SULT glucuronidation/sulfation enzymes in the intestinal mucosa and liver, and inhibits P-gp efflux. The result is dramatically reduced first-pass metabolism and intestinal efflux, producing the 2,000% plasma AUC increase observed in the Shoba RCT. This enhancement is specific to compounds that share the same metabolic vulnerabilities as curcumin.
Which compounds does piperine most effectively enhance?
Piperine is most effective for compounds that have: (1) poor water solubility; (2) high first-pass metabolism via CYP3A4 or conjugation enzymes; (3) P-gp-mediated intestinal efflux. Strong evidence: curcumin, CoQ10, resveratrol, EGCG, selenium, beta-carotene, vitamin B6. Moderate evidence: quercetin, berberine, naringenin. Poor candidates: water-soluble vitamins (vitamin C, B vitamins) and compounds with no CYP3A4 or P-gp involvement. Also enhances bioavailability of pharmaceutical drugs — piperine co-supplementation in patients on CYP3A4-metabolised drugs (statins, HIV antiretrovirals, cyclosporine) requires medical supervision.
Is there a difference between BioPerine® and generic piperine?
BioPerine® is Sabinsa’s patented standardised piperine extract from Piper nigrum — it is the ingredient used in most published clinical bioavailability studies and carries the weight of the clinical evidence. Generic piperine extracts (95–98% HPLC purity) have identical chemistry but do not carry the BioPerine® trademark or specifically the clinical dossier associated with it. For supplement formulation, high-purity generic piperine delivers equivalent pharmacological activity; the BioPerine® trademark may be relevant for marketing claims in certain markets.
Can piperine interact with blood-thinning medications?
Yes — piperine inhibits platelet aggregation (mild antiplatelet activity) and has been shown to alter warfarin pharmacokinetics via CYP2C9 inhibition in in vitro models. At 5–10 mg supplement doses, the clinical antiplatelet and anticoagulant interaction risk is likely minimal but should be flagged. For patients on warfarin or antiplatelet therapy, standard advisory language is appropriate. More relevant is piperine’s effect on CYP3A4-metabolised pharmaceutical drugs in the same formulation context.
Related compounds: Capsaicin, Gingerol, Piperlongumine, Curcumin
Claim-strength scale – High = multiple human RCTs; Moderate = limited trials or strong preclinical convergence; Emerging = early-stage lab or animal data.
← HerbIQ Compound Index · HerbIQ P02: Extraction · HerbIQ P03: Delivery