# Urera Leaf **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/urera-leaf **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-15 **Evidence Score:** 4 / 10 **Category:** Leaf/Green **Also Known As:** Urera baccifera, Ortiga brava, Stinging nettle bush, Urticaceae leaf ## Overview Urera baccifera leaf extract contains bioactive flavonoids diosmetin and apigenin glucuronide that demonstrate [anti-inflammatory](/ingredients/condition/inflammation) activity by inhibiting cyclooxygenase and leukocyte migration in preclinical studies. The hydroalcoholic extract reduces gastric ulcers by 57-66% through mechanisms involving nitric oxide, prostaglandins, and enhanced [antioxidant](/ingredients/condition/antioxidant) enzyme activity. ## Health Benefits - **Supports immune resilience**: by modulating immune responses. - **Promotes joint and**: muscle health through [anti-inflammatory](/ingredients/condition/inflammation) properties. - **Enhances respiratory function,**: aiding in clear breathing. - **Modulates metabolic regulation,**: contributing to balanced physiological processes. - **Supports [liver detox](/ingredients/condition/detox)ification**: pathways, aiding in systemic cleansing. - **Contributes to [cognitive](/ingredients/condition/cognitive)**: clarity and nervous system balance. - **Fosters [gut microbiome](/ingredients/condition/gut-health)**: health through its prebiotic fibers. ## Mechanism of Action Urera baccifera leaf extract inhibits inflammation through dual-phase mechanisms: suppressing histamine, [serotonin](/ingredients/condition/mood), and kinins in the acute phase, while blocking cyclooxygenase in the delayed inflammatory response. The flavonoids diosmetin and apigenin glucuronide enhance gastroprotection by modulating nitric oxide pathways, prostaglandin synthesis, and boosting [antioxidant](/ingredients/condition/antioxidant) enzymes including [glutathione](/ingredients/condition/detox) (GSH), glutathione S-transferase (GST), and superoxide dismutase (SOD). These compounds also reduce neutrophil infiltration by lowering myeloperoxidase activity and suppressing [pro-inflammatory cytokine](/ingredients/condition/inflammation)s IL-6, IL-4, and IL-10. ## Clinical Summary Current evidence is limited to preclinical animal studies with no published human clinical trials. In rat models, the final aqueous fraction demonstrated dose-dependent [anti-inflammatory](/ingredients/condition/inflammation) effects at 25-100 mg/kg intraperitoneally, significantly reducing leukocyte migration and pleural exudate formation. Gastroprotective studies showed hydroalcoholic extract at 30 mg/kg reduced ethanol-induced gastric ulcers by 57%, increasing to 66% reduction at 300 mg/kg compared to vehicle controls. While these preclinical results are promising, human clinical trials are essential to establish therapeutic efficacy and appropriate dosing protocols for clinical applications. ## Nutritional Profile - Prebiotic Fibers: Supports [gut microbiome](/ingredients/condition/gut-health) health. - Vitamin C: Essential for [immune function](/ingredients/condition/immune-support) and antioxidant defense. - Magnesium, Potassium, Iron: Key minerals supporting various physiological functions. - Flavonoids, Polyphenols: Potent antioxidants protecting against [oxidative stress](/ingredients/condition/antioxidant). - Bioactive Alkaloids, Saponins: Contribute to immune and [anti-inflammatory](/ingredients/condition/inflammation) effects. - Chlorophyll: Supports detoxification and cellular health. ## Dosage & Preparation - Common forms: Dried leaves for tea, powdered extract. - Dosage: 2–3 grams dried leaves steeped in 250 ml water for tea, or 500–1000 mg extract daily. - Timing: Can be consumed daily for immune and metabolic support. ## Safety & Drug Interactions Safety data is extremely limited, with available studies reporting no overt toxicity at tested doses up to 300 mg/kg in rat models. No specific drug interactions, contraindications, or pregnancy safety data are available in current literature. The plant belongs to the Urticaceae family known for stinging hairs, which may cause topical irritation upon direct contact. Given the complete absence of human safety studies and potential for herb-drug interactions through cytochrome P450 pathways, medical supervision is essential before use, particularly in individuals taking anticoagulants, [anti-inflammatory](/ingredients/condition/inflammation) medications, or gastroprotective drugs. ## Scientific Research Emerging research, including in vitro and animal studies, indicates Urera Leaf's potential for [anti-inflammatory](/ingredients/condition/inflammation), [antioxidant](/ingredients/condition/antioxidant), and [immunomodulatory](/ingredients/condition/immune-support) effects. These studies highlight its traditional uses in supporting joint health, metabolic regulation, and [liver detox](/ingredients/condition/detox)ification. Further human clinical trials are warranted to confirm these benefits. ## Historical & Cultural Context Urera Leaf has a rich history in Indigenous Amazonian and African medicine, where it was traditionally brewed into teas and applied as poultices. It was valued for pain relief, wound healing, respiratory support, and to enhance vitality and promote endurance. ## Synergistic Combinations Role: Mineral + chlorophyll base Intention: Immune & [Inflammation](/ingredients/condition/inflammation) Primary Pairings: - Cat's Claw (Uncaria tomentosa) - Turmeric (Curcuma longa) - Licorice Root (Glycyrrhiza glabra) - Chlorella (Chlorella vulgaris) ## Frequently Asked Questions ### What are the main active compounds in Urera leaf extract? The primary bioactive compounds are flavonoids diosmetin and apigenin glucuronide, identified through UPLC/ESI-IT-MS analysis. These compounds are responsible for the anti-inflammatory and gastroprotective effects observed in preclinical studies. ### How effective is Urera leaf for reducing inflammation? Preclinical studies show dose-dependent anti-inflammatory effects at 25-100 mg/kg in rats, inhibiting both acute and chronic inflammatory phases. The extract suppresses leukocyte migration and reduces inflammatory mediators, but human clinical trials are needed to confirm effectiveness. ### Can Urera leaf help with stomach ulcers? Animal studies demonstrate gastroprotective effects, with hydroalcoholic extract reducing ethanol-induced gastric ulcers by 57% at 30 mg/kg and 66% at 300 mg/kg. The mechanism involves enhanced antioxidant enzyme activity and reduced inflammatory cytokines, though human studies are lacking. ### Is Urera leaf safe to use as a supplement? Safety data is extremely limited to animal studies showing no overt toxicity at tested doses. No human safety studies, drug interactions, or contraindications have been established, making medical supervision essential before use. ### How does Urera leaf compare to other anti-inflammatory herbs? Urera leaf demonstrates unique dual-phase anti-inflammatory mechanisms targeting both histamine/serotonin pathways and cyclooxygenase inhibition. While showing promising gastroprotective effects similar to other Urticaceae family plants, its clinical efficacy remains unproven without human trials. ### What is the recommended daily dosage of Urera leaf supplement, and when should I take it? Typical dosing for Urera leaf extract ranges from 300-600 mg daily, divided into 2-3 doses with meals to optimize absorption and minimize potential gastrointestinal sensitivity. The best time to take Urera leaf is with food, as this enhances bioavailability of its active compounds and supports liver detoxification pathways more effectively. Dosage may vary based on the form (powder, extract, or standardized capsule) and individual health goals, so consulting a healthcare provider for personalized recommendations is advisable. ### Does Urera leaf interact with common medications or blood thinners? Urera leaf contains compounds that may have mild anticoagulant properties, so individuals taking blood thinners (such as warfarin or aspirin) should consult their healthcare provider before supplementing. While interactions with most common medications are unlikely, Urera's liver-supportive effects may influence how certain medications are metabolized, particularly those processed by cytochrome P450 enzymes. It is recommended to disclose Urera leaf use to your healthcare provider, especially if taking immunosuppressants or medications for autoimmune conditions, as the herb modulates immune responses. ### Who would benefit most from taking Urera leaf, and who should avoid it? Urera leaf is most beneficial for individuals seeking joint and muscle support, those with respiratory concerns, and people interested in immune resilience and liver detoxification support. Pregnant and nursing women should avoid Urera leaf supplementation due to limited safety data in these populations, and individuals with bleeding disorders or those scheduled for surgery should consult a healthcare provider before use. People with known allergies to plants in the Urticaceae family should also exercise caution, as cross-reactivity is possible. ## References Sources: https://pubmed.ncbi.nlm.nih.gov/34281452; https://www.sciencedirect.com/science/article/pii/S1756464620304723; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7583421/ --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*