# Prosposol (Propolis extract)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/prosposol
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-19
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Resina Propoli, Bee Glue, Hive Dross, Bee Resin, Propolis Resin Extract, Cera Alba Propolis, Sticky Wax

## Overview

Propolis extract (Prosposol) is a resinous bee-derived compound rich in polyphenols, particularly caffeic acid phenethyl ester (CAPE) and flavonoids like chrysin and galangin, which drive its biological activity. These bioactives inhibit NF-κB signaling and scavenge [reactive oxygen species](/ingredients/condition/antioxidant), producing measurable [anti-inflammatory](/ingredients/condition/inflammation) and antioxidant effects validated in human clinical trials.

## Health Benefits

• Reduces [inflammatory](/ingredients/condition/inflammation) markers (IL-6, TNF-α, CRP) and increases [antioxidant](/ingredients/condition/antioxidant) capacity based on a meta-analysis of 27 RCTs with 1,539 participants
• Supports metabolic health by reducing aspartate aminotransferase (AST) levels according to meta-analytical evidence
• May help with cancer treatment-related toxicities including oral mucositis and dysphagia following radiotherapy (clinical trial evidence)
• Shows promise for treating diabetic foot ulcers when applied topically as 5% ointment (clinical trial evidence)
• Demonstrates anti-parasitic effects against cutaneous leishmaniasis in both in vitro and animal studies

## Mechanism of Action

Propolis polyphenols, particularly CAPE and pinocembrin, suppress NF-κB nuclear translocation, thereby downregulating transcription of [pro-inflammatory cytokine](/ingredients/condition/inflammation)s including IL-6, IL-1β, and TNF-α. Flavonoid constituents such as galangin and chrysin inhibit cyclooxygenase (COX) and lipoxygenase (LOX) enzymes, reducing prostaglandin and leukotriene synthesis. Additionally, propolis upregulates endogenous [antioxidant](/ingredients/condition/antioxidant) enzymes including superoxide dismutase (SOD) and catalase by activating the Nrf2-Keap1 pathway, enhancing cellular redox homeostasis.

## Clinical Summary

A meta-analysis of 27 randomized controlled trials encompassing 1,539 participants demonstrated that propolis supplementation significantly reduced circulating [inflammatory](/ingredients/condition/inflammation) markers IL-6, TNF-α, and CRP while improving total [antioxidant](/ingredients/condition/antioxidant) capacity. The same body of evidence showed reductions in aspartate aminotransferase (AST), suggesting [hepatoprotective](/ingredients/condition/detox) benefits relevant to metabolic health. Preliminary clinical data also indicate potential adjunctive roles in cancer-related symptom management, though this evidence remains early-stage and insufficiently powered to draw firm conclusions. Overall evidence quality is moderate; most trials are short-term and heterogeneous in propolis composition and dosage, warranting cautious interpretation.

## Nutritional Profile

Prosposol is a standardized propolis extract delivered typically as an oral spray or liquid formulation. It is not a significant source of macronutrients (protein, fat, carbohydrates) or calories, as it is administered in small therapeutic doses. **Key Bioactive Compounds:** • **Flavonoids** (primary active constituents): including pinocembrin (~1-3% of dry extract), chrysin (~0.5-2%), galangin (~0.5-2%), apigenin, kaempferol, and quercetin — these are responsible for much of the [anti-inflammatory](/ingredients/condition/inflammation) and [antioxidant activity](/ingredients/condition/antioxidant). • **Phenolic acids and esters:** caffeic acid phenethyl ester (CAPE, ~0.5-2%), p-coumaric acid, ferulic acid, and cinnamic acid derivatives — CAPE is considered one of the most pharmacologically potent constituents, contributing to NF-κB inhibition and TNF-α/IL-6 suppression. • **Artepillin C** (3,5-diprenyl-4-hydroxycinnamic acid): present predominantly in Brazilian green propolis-derived extracts (~3-5% of dry extract), with notable anticancer and [immunomodulatory](/ingredients/condition/immune-support) properties. • **Terpenoids and volatile compounds:** including β-eudesmol, nerolidol, and farnesol (~0.5-1%). • **Organic acids:** benzoic acid, sorbic acid. • **Trace minerals:** small amounts of zinc (~0.02-0.05 mg per dose), iron, calcium, manganese, and magnesium derived from the raw propolis matrix, though not at nutritionally significant levels. • **Vitamins:** trace amounts of B-complex vitamins (B1, B2, B6) and vitamin E (tocopherols), again not at nutritionally relevant doses. • **Polysaccharides and waxes:** present in the crude extract but partially removed during standardized extraction; residual amounts may contribute to mild immunostimulatory effects. **Approximate concentration in typical dose (2-3 sprays or ~0.1-0.3 mL):** total flavonoid content ~5-15 mg expressed as galangin equivalents; total phenolic content ~10-30 mg expressed as gallic acid equivalents, depending on formulation strength (commonly standardized to 5-11% w/v propolis dry extract). **Bioavailability notes:** Flavonoids from propolis extracts generally have low oral bioavailability (5-10%) due to extensive first-pass [metabolism](/ingredients/condition/weight-management) and glucuronidation, though the alcohol/propylene glycol-based liquid delivery system in Prosposol may enhance mucosal absorption. CAPE shows moderate absorption with peak plasma levels at ~1-2 hours. Artepillin C has relatively better bioavailability (~15-20%) compared to other propolis flavonoids. The spray/oral mucosal delivery format may bypass some hepatic first-pass metabolism for locally acting compounds, improving effective concentration at oropharyngeal sites.

## Dosage & Preparation

Clinical studies have used propolis supplementation at 1,000 mg daily, though specific dose-response relationships are not well established. Treatment durations in clinical trials have ranged from less than 12 weeks to 12 weeks or longer. Topical applications have used 5% propolis ointment for diabetic foot ulcers. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Propolis is generally well tolerated at typical supplemental doses of 400–1,500 mg/day, but allergic reactions—ranging from contact dermatitis to rare anaphylaxis—are documented, particularly in individuals allergic to bee products, pollen, or salicylates. It may potentiate anticoagulant medications such as warfarin due to coumarin-like constituents, and caution is advised when co-administering with immunosuppressants given its immune-modulating activity. Propolis may inhibit cytochrome P450 enzymes (notably CYP3A4 and CYP2C9), potentially altering plasma levels of co-administered drugs metabolized by these pathways. Safety data in pregnancy and lactation are insufficient; use is not recommended in these populations without physician supervision.

## Scientific Research

A 2024 meta-analysis of 27 randomized controlled trials (1,539 participants) found that propolis supplementation significantly reduced [inflammatory](/ingredients/condition/inflammation) markers and increased [antioxidant](/ingredients/condition/antioxidant) capacity, with stronger effects in trials lasting less than 12 weeks. Clinical trials have investigated Brazilian organic propolis extract for radiotherapy-related toxicities in head and neck cancer patients, while other studies examined standardized propolis (EPP-AF®) for leishmaniasis treatment and 5% propolis ointment for diabetic foot ulcers.

## Historical & Cultural Context

Propolis has been used in traditional medicine systems, with modern pre-clinical and clinical studies investigating its therapeutic benefits being motivated by these historical uses. However, specific details about which traditional medicine systems employed propolis or the duration of historical use are not well documented in current research.

## Synergistic Combinations

Vitamin C, Quercetin, Zinc, Elderberry, Echinacea

## Frequently Asked Questions

### What is the effective dosage of propolis extract for immune support?

Clinical trials have used propolis doses ranging from 400 mg to 1,500 mg per day, typically standardized to a minimum of 5% flavonoid content or a defined CAPE concentration. Most positive outcomes in meta-analytical data were observed with oral supplementation over periods of 8–12 weeks, though optimal dosing varies by formulation and individual health status.

### Can propolis extract lower inflammation markers like CRP and IL-6?

Yes, a meta-analysis of 27 RCTs with 1,539 participants confirmed statistically significant reductions in CRP, IL-6, and TNF-α following propolis supplementation. The proposed mechanism involves inhibition of NF-κB signaling by CAPE and flavonoids, which reduces transcription of these pro-inflammatory cytokines at the gene expression level.

### Is propolis extract safe to take with blood thinners like warfarin?

Propolis contains coumarin-related compounds that may have additive anticoagulant effects when combined with warfarin or other blood thinners, increasing bleeding risk. Patients on anticoagulant therapy should consult a physician and monitor INR levels closely before initiating propolis supplementation, as dose adjustments may be necessary.

### How does propolis extract support liver health?

Meta-analytical evidence indicates that propolis supplementation significantly reduces serum aspartate aminotransferase (AST) levels, a key biomarker of liver cell stress and injury. This hepatoprotective effect is attributed to the Nrf2-mediated upregulation of antioxidant enzymes like SOD and catalase, which reduce oxidative damage to hepatocytes, and to NF-κB inhibition that lowers hepatic inflammatory signaling.

### Who should avoid taking propolis extract supplements?

Individuals with allergies to bee products, honey, pollen, or salicylates face a meaningful risk of allergic reactions to propolis, including contact dermatitis or, rarely, anaphylaxis. Pregnant and breastfeeding women should avoid propolis due to insufficient safety data, and people taking warfarin, immunosuppressants, or drugs metabolized by CYP3A4 and CYP2C9 should seek medical guidance before use.

### What is the difference between Prosposol and other propolis extract brands?

Prosposol is a standardized propolis extract branded ingredient with documented formulation and quality control, while other propolis products may vary significantly in active compound concentration and extraction method. The standardization of Prosposol helps ensure consistent levels of bioactive constituents like flavonoids and phenolic acids across batches, which is crucial for achieving the anti-inflammatory and antioxidant benefits demonstrated in clinical research. When selecting a propolis supplement, choosing a branded standardized extract like Prosposol over unstandardized products may provide more reliable and reproducible health outcomes.

### Can propolis extract help with side effects from cancer treatment like mouth sores?

Clinical trial evidence suggests that propolis extract may help reduce oral mucositis (mouth sores) and dysphagia (difficulty swallowing) in patients undergoing radiotherapy for cancer treatment. The anti-inflammatory and antioxidant properties of propolis appear to protect oral tissues from radiation-induced damage and support tissue healing. However, cancer patients should consult their oncology team before adding propolis supplements, as individual treatment protocols and potential interactions must be considered.

### How does propolis extract improve metabolic health and liver function?

Propolis extract supports metabolic health by reducing aspartate aminotransferase (AST) levels, a liver enzyme marker often elevated during metabolic dysfunction, according to meta-analytical evidence. It also enhances antioxidant capacity and reduces inflammatory markers (IL-6, TNF-α, CRP) that are associated with poor metabolic outcomes and liver stress. These combined effects suggest that propolis may help protect liver tissue and improve overall metabolic function, particularly in individuals with elevated inflammation or liver enzyme levels.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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