Benefits
83% symptom reduction in 3 days (URTI trial)
In the pivotal 5-day double-blind placebo-controlled clinical trial of 122 people with viral or bacterial upper respiratory tract infection (URTI) symptoms, PROMUNEL at 12-24 mg polyphenols/day produced an 83% reduction in symptoms after 3 days vs placebo. Published in the prestigious peer-reviewed journal Phytomedicine. Among the strongest documented acute symptom responses for a natural respiratory intervention.
Recovery time reduced by 2 days
Same pivotal trial documented PROMUNEL cut two days off respiratory illness recovery time. Faster recovery reduces sick days, productivity loss, and infection spread to others. The 2-day reduction is clinically meaningful — comparable to or exceeding many over-the-counter cold remedies.
Six antimicrobially bioactive polyphenols
PROMUNEL is standardized to six antimicrobially bioactive polyphenols — providing consistent dosing of the active compounds. Standard propolis varies wildly in composition based on geography, season, and processing. The standardization ensures reproducible clinical effects, distinguishing PROMUNEL from variable-quality propolis products.
Broad-spectrum antimicrobial activity
Propolis has antiseptic properties enabling antibacterial, bacteriostatic, antiviral, and antifungal actions. The broad spectrum makes PROMUNEL useful for general immune support rather than single-pathogen targeting. Propolis functions as the beehive's immune system — beehives are among the most sterile environments in nature despite 50,000 inhabitants at 90% humidity.
Immune modulation and inflammatory regulation
Beyond direct antimicrobial effects, propolis modulates the immune system and regulates inflammatory response. Combined with antimicrobial activity, this dual mechanism supports recovery from infection by both clearing pathogens and limiting tissue damage from excessive inflammatory response. Particularly relevant for respiratory infections where inflammation drives much of the symptom burden.
5,000 years of traditional use
Propolis has been used medicinally since antiquity — documentation spans 5,000+ years across multiple civilizations including ancient Egypt (where it was used for embalming and to treat wounds and infections). The extensive traditional use precedent supports the general safety profile and provides cultural authenticity. PROMUNEL brings this traditional ingredient into modern standardized clinical evidence.
Sustainable bee colony protection
B Natural's commitment to honeybee colony protection includes contracts with beekeepers to protect bee health and maintain thriving environments — never over-sourcing and providing pesticide-free environments. The sustainability profile addresses consumer concerns about bee population decline. Non-GMO, Halal, Kosher, gluten-free certifications support broad consumer access.
Mechanism of action
Polyphenol antimicrobial activity
PROMUNEL's six standardized polyphenols have documented broad-spectrum antimicrobial activity against bacteria, viruses, and fungi. Mechanism involves membrane disruption and metabolic interference in pathogens. The broad spectrum vs targeted antibiotics explains propolis's traditional use for diverse infectious conditions.
Immune system modulation
Propolis modulates immune system function — supporting appropriate responses without blanket immunosuppression or stimulation. The balanced modulation mechanism is particularly valuable during respiratory infections where excessive inflammation contributes to symptom burden, but adequate immune response is needed to clear pathogens.
Inflammatory response regulation
Propolis polyphenols regulate inflammatory pathways — reducing excessive inflammation while preserving needed immune response. Excessive inflammation drives much of the symptom burden in respiratory infections (cough, congestion, fatigue). Regulating inflammation explains the rapid symptom reduction documented in the URTI trial.
Multi-Dynamic Extraction (M.E.D.™) preservation
B Natural's patented M.E.D.™ extraction process preserves the complete polyphenolic complex naturally present in propolis. Standard extraction methods can degrade or lose specific polyphenols. The M.E.D.™ technology maintains the natural bioactive balance, supporting reproducible clinical effects.
Clinical trials
Monocentric, randomized, double-blind, placebo-controlled clinical trial evaluating PROMUNEL for upper respiratory tract infection (URTI) symptom remission. 5-day intervention with 12-24 mg polyphenols/day. Published in Phytomedicine 80 (Esposito et al. 2021) — a peer-reviewed journal.
122 people with symptoms of viral or bacterial uncomplicated URTI. 5-day intervention.
PROMUNEL produced an 83% reduction in symptoms after 3 days in the treated group vs placebo. Cut two days off respiratory illness recovery time. Established PROMUNEL as the first standardized propolis with double-blind clinical research validating efficacy for upper respiratory tract health. Foundation for PROMUNEL's commercial positioning as the clinically-validated propolis.
Recent clinical study evaluating PROMUNEL at 400 mg/day vs placebo for 12 weeks during autumn-to-spring period (respiratory infection season). Designed to assess prevention of URTI incidence, severity, and duration in a maintenance dosing context vs the pivotal trial's acute treatment design.
295 health adults (159 women, 136 men). 12-week intervention during respiratory illness season.
PROMUNEL maintenance dosing demonstrated reductions in URTI incidence, severity, and duration vs placebo. Establishes PROMUNEL's applications beyond acute treatment to prevention/maintenance use during high-risk seasons. The dual evidence base (acute treatment + prevention) distinguishes PROMUNEL from single-context propolis products.
Mechanistic studies on PROMUNEL's polyphenolic complex characterizing antimicrobial, immune modulation, and anti-inflammatory effects. Published in Materials (Zaccaria 2019, M.E.D.™ process), Nutrients (Zaccaria 2017, mechanism), and Biomedicine & Pharmacotherapy (Garzarella 2022, additional mechanism).
Not applicable — in vitro and laboratory studies characterizing PROMUNEL's bioactivity.
PROMUNEL's polyphenolic complex demonstrated broad-spectrum antimicrobial activity against bacteria, viruses, and fungi. Immune modulation effects characterized at cellular level. Anti-inflammatory mechanisms documented. The mechanistic foundation supports the clinical efficacy observed in the URTI trials and validates the standardized polyphenol approach vs non-standardized propolis.