# Pulegone **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/pulegone **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-29 **Evidence Score:** 2 / 10 **Category:** Compound **Also Known As:** p-menth-4(8)-en-3-one, mentha pulegium constituent, pennyroyal ketone, pulegone ketone, mint ketone, fleabane oil component, European pennyroyal extract, Agastache constituent ## Overview Pulegone is a monoterpene found in plants like peppermint and pennyroyal, exhibiting potential antinociceptive and [cardiovascular](/ingredients/condition/heart-health) benefits. It primarily modulates vascular function by improving nitric oxide bioavailability and may influence pain perception through non-opioid pathways. ## Health Benefits • May help reduce [blood pressure](/ingredients/condition/heart-health) and improve cardiovascular markers in hypertension (preliminary animal evidence only) • Demonstrates antinociceptive (pain-relieving) effects in animal models, though mechanism differs from opioids • Shows potential to improve nitric oxide levels and vascular function (rat studies only) • May modulate lipid profiles and [oxidative stress](/ingredients/condition/antioxidant) markers (limited to animal research) • Exhibits [anti-inflammatory](/ingredients/condition/inflammation) properties in lung tissue (preliminary animal data) ## Mechanism of Action Pulegone, a monoterpene, exerts its [cardiovascular](/ingredients/condition/heart-health) benefits primarily by enhancing nitric oxide (NO) bioavailability, potentially by improving endothelial nitric oxide synthase (eNOS) activity and reducing [oxidative stress](/ingredients/condition/antioxidant), leading to vasodilation. Its antinociceptive effects are independent of opioid receptors, possibly involving modulation of transient receptor potential (TRP) channels or influencing other neural pain pathways. ## Clinical Summary Current research on Pulegone's health benefits is predominantly limited to preclinical studies. Animal models of hypertension have indicated Pulegone's potential to reduce [blood pressure](/ingredients/condition/heart-health) and improve cardiovascular markers, though specific dosages and long-term effects in humans remain unquantified. Furthermore, studies in animal models demonstrate significant antinociceptive effects, elucidating non-opioid mechanisms of pain relief. Human clinical data establishing efficacy and safety is currently lacking. ## Nutritional Profile Pulegone (C10H16O) is a pure monoterpenoid ketone compound, not a food ingredient with conventional nutritional properties. As a single isolated compound, it contains no protein, carbohydrates, dietary fiber, vitamins, or minerals. Molecular weight: 152.23 g/mol. It is a lipophilic molecule with high fat solubility and low water solubility, which governs its bioavailability and distribution. Caloric contribution is negligible at typical exposure concentrations. Pulegone occurs naturally in pennyroyal oil (Mentha pulegium) at concentrations of 60–90% of total essential oil composition, in peppermint oil at trace levels (up to ~4%), and in catnip and other Lamiaceae family plants. As a bioactive compound, it acts primarily through cytochrome P450 enzyme interactions (CYP2A6, CYP1A2) and is metabolized hepatically to menthofuran, a known hepatotoxic metabolite. Oral bioavailability is considered moderate-to-high due to lipophilicity, enabling gastrointestinal absorption and systemic distribution. At high doses (>400 mg/kg in animal models), hepatotoxicity and neurotoxicity have been documented. The FDA classifies pennyroyal oil (high in pulegone) as unsafe for internal use. Typical dietary exposure via peppermint-flavored foods is estimated at microgram-level quantities, far below toxic thresholds. ## Dosage & Preparation No human dosage data exists. Animal studies used 20-80 mg/kg orally for [cardiovascular](/ingredients/condition/heart-health) effects. Toxicity emerges at 150-300 mg/kg in rodents. Pulegone is highly hepatotoxic at higher doses and should not be used as a supplement. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Pulegone is a known hepatotoxin and should be avoided in concentrated forms, especially Pennyroyal oil. Symptoms of toxicity can include nausea, vomiting, abdominal pain, seizures, and liver damage, with fatalities reported at high doses (e.g., >10ml Pennyroyal oil). It is contraindicated in pregnancy due to abortifacient properties and in individuals with liver disease. Limited data exists on specific drug interactions; however, caution is advised with hepatotoxic medications or drugs metabolized by cytochrome P450 enzymes. ## Scientific Research No human clinical trials, RCTs, or meta-analyses on pulegone have been conducted; all evidence comes from preclinical animal studies. Key research includes a rat hypertension model study (PMC10195173) showing [blood pressure](/ingredients/condition/heart-health) reduction at 20-80 mg/kg doses, and extensive toxicology studies in rats and mice revealing dose-dependent hepatotoxicity at higher doses. ## Historical & Cultural Context Pulegone, as the major component of pennyroyal oil (Mentha pulegium), has been used in folklore medicine as an abortifacient and emmenagogue. This traditional use dates to historical herbal practices, though it carries significant hepatotoxicity risks that were not fully understood in traditional contexts. ## Synergistic Combinations Not applicable - pulegone is hepatotoxic and not recommended for supplementation ## Frequently Asked Questions ### What is Pulegone? Pulegone is a naturally occurring cyclic monoterpene ketone, primarily found in the essential oils of plants such as peppermint, pennyroyal, and catnip. It is responsible for the characteristic minty aroma in some of these plants and has been investigated for its potential biological activities, including antinociceptive and cardiovascular effects. ### Is Pulegone safe for consumption? Pulegone is considered toxic, especially in concentrated forms or high doses, with adverse effects primarily affecting the liver. Ingesting concentrated Pulegone, such as in Pennyroyal oil, can cause severe hepatotoxicity, gastrointestinal distress, seizures, and can be fatal. It is generally not recommended for internal use as a supplement due to its significant toxicity profile and lack of established safe dosages in humans. ### What are the potential health benefits of Pulegone? Preliminary animal studies suggest Pulegone may offer several health benefits, including reducing blood pressure and improving cardiovascular markers in models of hypertension. It has also demonstrated significant antinociceptive, or pain-relieving, effects in animal models. These findings, however, require robust human clinical trials to confirm efficacy and safety. ### How does Pulegone relieve pain? Pulegone's pain-relieving effects, observed in animal models, appear to operate through mechanisms distinct from opioid pathways. While the exact molecular targets are still under investigation, it is thought to modulate neural pain pathways or interact with specific ion channels, rather than directly binding to opioid receptors. This suggests a unique pharmacological profile for its antinociceptive action. ### What natural sources contain Pulegone? Pulegone is naturally present in several plant essential oils. Notable sources include Pennyroyal (Mentha pulegium), where it is a major constituent, as well as peppermint (Mentha piperita) and catnip (Nepeta cataria). The concentration of Pulegone can vary significantly depending on the plant species, cultivar, and growing conditions. ### Does Pulegone interact with blood pressure medications? Pulegone may have blood pressure-lowering effects based on preliminary animal studies, which could potentially potentiate the effects of antihypertensive medications like ACE inhibitors or beta-blockers. Anyone taking prescription blood pressure medications should consult their healthcare provider before using Pulegone supplements, as combined effects could lead to excessive blood pressure reduction. Current evidence is limited to animal models, so clinical interaction data in humans is not yet available. ### Is Pulegone safe during pregnancy and breastfeeding? Pulegone should be avoided during pregnancy and breastfeeding due to insufficient safety data and its known hepatotoxic potential at high doses. Pregnant and nursing women are advised to consult their healthcare provider before using any Pulegone-containing products, as the risks to fetal and infant development have not been adequately studied. The traditional use of pulegone-containing plants like pennyroyal during pregnancy is actually contraindicated due to toxicity concerns. ### How strong is the evidence for Pulegone's cardiovascular benefits in humans? Current evidence for Pulegone's cardiovascular benefits is limited to preliminary animal studies (rats and mice); no high-quality human clinical trials have been conducted to date. While animal models show promising effects on blood pressure, nitric oxide levels, and lipid profiles, these results cannot be reliably extrapolated to humans without rigorous clinical research. More human studies are needed before Pulegone can be recommended as an evidence-based supplement for cardiovascular health. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*