# Piperlongumine **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/piperlongumine **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-31 **Evidence Score:** 2 / 10 **Category:** Compound **Also Known As:** PL, PLG, Long pepper alkaloid, Piper longum alkaloid, (E,E)-1-[3-(3,4-methylenedioxyphenyl)prop-2-enoyl]piperidine, Piperlonguminine, Long pepper amide ## Overview Piperlongumine is an amide alkaloid derived from Piper longum that demonstrates selective cytotoxicity against cancer cells through [reactive oxygen species](/ingredients/condition/antioxidant) (ROS) elevation. This compound specifically targets malignant cells while sparing normal healthy cells, showing promise in preclinical cancer research. ## Health Benefits • Selective cancer cell cytotoxicity through ROS elevation (preclinical evidence only) • Anti-invasive and antiangiogenic properties against tumors (animal studies) • Proapoptotic effects in cancer cells while sparing normal cells (in-vitro studies) • Synergistic effects with chemotherapeutic agents (preclinical data) • Platelet aggregation inhibition (traditional use context) ## Mechanism of Action Piperlongumine selectively elevates [reactive oxygen species](/ingredients/condition/antioxidant) (ROS) levels in cancer cells by disrupting their antioxidant defense systems, particularly targeting [glutathione](/ingredients/condition/detox) and catalase pathways. The compound induces apoptosis through [mitochondrial](/ingredients/condition/energy) dysfunction and activates p53-dependent cell death pathways. It also inhibits angiogenesis by suppressing VEGF signaling and reduces cancer cell invasion by modulating matrix metalloproteinase activity. ## Clinical Summary Current evidence for piperlongumine consists entirely of preclinical studies, with no human clinical trials completed. In vitro studies demonstrate selective cytotoxicity against various cancer cell lines including breast, lung, and colon cancer cells at concentrations of 5-50 μM. Animal studies in mice show tumor growth inhibition of 40-70% when combined with chemotherapeutic agents like cisplatin. While promising, the compound requires extensive human safety and efficacy testing before clinical application. ## Nutritional Profile Piperlongumine (PL) is a bioactive alkaloid/amide isolated primarily from Piper longum (long pepper) fruit. Typical concentration in dried long pepper fruit is approximately 0.2–1.0% by weight. It is a low-molecular-weight compound (MW ~317.3 g/mol) with the chemical formula C₁₇H₁₉NO₅, featuring two electrophilic α,β-unsaturated carbonyl moieties responsible for its reactivity with cellular thiols (especially [glutathione](/ingredients/condition/detox) and thioredoxin). PL has no meaningful macronutrient, vitamin, or mineral contribution as it is used at pharmacological microgram-to-low-milligram doses (typically 5–20 mg in supplement contexts). Oral bioavailability is moderate but limited by rapid hepatic [metabolism](/ingredients/condition/weight-management) (CYP-mediated); co-administration with piperine or lipid-based delivery systems can improve absorption 2–3 fold. It is lipophilic (LogP ~2.6), readily crossing cell membranes. Key metabolites include hPL (hydrolyzed piperlongumine) which retains partial bioactivity. ## Dosage & Preparation No clinically studied dosage ranges are available as human trials have not been conducted. Commercial products contain ≥97% pure piperlongumine powder, but dosing recommendations are not established. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Safety data for piperlongumine in humans is currently unavailable due to lack of clinical trials. Preclinical studies suggest potential gastrointestinal irritation based on traditional use of Piper longum. The compound may interact with chemotherapy drugs, potentially enhancing their effects and requiring dosage adjustments. Pregnancy and lactation safety is unknown, and individuals with existing liver or kidney conditions should exercise caution given the compound's metabolic pathways. ## Scientific Research No human clinical trials, randomized controlled trials, or meta-analyses have been conducted on piperlongumine according to the available research. All evidence comes from preclinical studies including in-vitro cancer cell line experiments and rodent tumor models. ## Historical & Cultural Context The source plant Piper longum L. has been used in Ayurvedic medicine with over 50 years of documented pharmacology. While specific historical uses for piperlongumine itself are not detailed, it occurs naturally as an amide alkaloid in this traditionally medicinal plant. ## Synergistic Combinations Piperlongumine pairs exceptionally well with Piperine (5–20 mg), which inhibits CYP3A4 and glucuronidation to significantly enhance PL's oral bioavailability and extend its half-life. Sulforaphane (10–30 mg, from broccoli seed extract) synergizes by further depleting [glutathione](/ingredients/condition/detox) (GSH) pools via Nrf2 pathway modulation, amplifying PL's pro-oxidant selectivity against cancer cells while paradoxically strengthening normal cell antioxidant defenses. Curcumin (200–500 mg, as bioavailable formulation) complements PL through convergent inhibition of [NF-κB](/ingredients/condition/inflammation) and STAT3 signaling pathways, with preclinical studies showing supra-additive antiproliferative effects. EGCG from green tea extract (200–400 mg) adds value by co-targeting the proteasome and ROS-mediated apoptotic cascades, and Quercetin (250–500 mg) further potentiates activity by inhibiting heat shock protein responses (HSP70/90) that cancer cells upregulate as a survival mechanism against PL-induced [oxidative stress](/ingredients/condition/antioxidant). ## Frequently Asked Questions ### What is piperlongumine extracted from? Piperlongumine is extracted from Piper longum, commonly known as long pepper, where it serves as the primary bioactive alkaloid. The compound is typically isolated from the fruit of this plant using ethanol extraction methods. ### How does piperlongumine target cancer cells specifically? Piperlongumine selectively targets cancer cells by overwhelming their already-stressed antioxidant systems with reactive oxygen species. Normal cells maintain robust antioxidant defenses that protect them from piperlongumine's ROS-inducing effects, while cancer cells cannot cope with the additional oxidative stress. ### Can piperlongumine be taken with chemotherapy? Preclinical studies show piperlongumine enhances the effects of chemotherapy drugs like cisplatin and doxorubicin. However, this interaction has only been studied in laboratory and animal models, and human clinical data on safety and appropriate dosing combinations is not available. ### What dosage of piperlongumine is effective? In laboratory studies, piperlongumine shows anti-cancer effects at concentrations of 5-50 μM in cell cultures. Animal studies used doses equivalent to 2.5-10 mg/kg body weight, but human dosage recommendations cannot be established without clinical trials. ### Are there any natural sources of piperlongumine besides supplements? Piperlongumine occurs naturally in Piper longum (long pepper) and related Piper species, but dietary consumption of these spices provides minimal amounts. Traditional preparations of long pepper contain only trace quantities compared to concentrated supplement extracts. ### What does current clinical research show about piperlongumine's effectiveness in humans? Most evidence for piperlongumine comes from laboratory and animal studies demonstrating ROS-mediated cancer cell death and antitumor effects. Human clinical trials are limited, meaning efficacy and safety in people remain largely unestablished. Anyone considering piperlongumine should consult healthcare providers about the preclinical-only status of current research. ### Does piperlongumine interact with blood thinners or antiplatelet medications? Since piperlongumine has been shown to inhibit platelet aggregation in traditional use contexts, it may have additive effects with antiplatelet drugs like aspirin or anticoagulants like warfarin. This interaction profile warrants caution and medical supervision if combining piperlongumine with blood-thinning medications. Consultation with a healthcare provider before concurrent use is strongly recommended. ### Who should avoid taking piperlongumine supplements? Piperlongumine should be avoided by pregnant and nursing women due to insufficient safety data in these populations. Individuals with bleeding disorders, those taking anticoagulants or antiplatelet agents, and people with active cancer undergoing treatment should not use piperlongumine without explicit medical approval. People with liver disease may also need to avoid this ingredient due to potential hepatic metabolism concerns. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*