About This Product

Cellular defense and allergy support from nature’s most potent flavonoid

Ingredients We Leave Out

Artificial Colors and Preservatives, Dairy, Soy, or Gluten, Silicon dioxide

Directions for Use

2 soft capsules daily

Cautions and Warnings
  • Consult your healthcare provider if pregnant, breastfeeding, or taking medications
  • May enhance the effect of certain blood pressure or anticoagulant medications
  • Not intended as a replacement for antihistamines in acute allergic reactions

When to Use

Promotes cellular defense and longevity

 

Helps reduce histamine-related allergy symptoms

 

Supports upper respiratory comfort

 

Enhances mitochondrial health and energy production

 

Synergizes well with Vitamin C, bromelain, and zinc

 

Funtional benefits

Cellular
Longevity

Promotes cellular defense and longevity

Allergy
Relief

Helps reduce histamine-related allergy symptoms

Respiratory
Support

Supports upper respiratory comfort

Mito
Energy

Enhances mitochondrial health and energy production

Nutrient
Synergy

Synergizes well with Vitamin C, bromelain, and zinc

The Science Behind It

Quercetin is a polyphenolic flavonoid found in apples, onions, and capers-but clinical doses far exceed what diet alone can provide. Our capsules deliver 500 mg of standardized quercetin, a dose shown to:

Inhibit histamine release and mast cell activation

Support mitochondrial biogenesis and autophagy

Downregulate NF-κB and pro-inflammatory cytokines

Scavenge reactive oxygen species (ROS) linked to aging and inflammation

Quercetin also acts as a zinc ionophore, facilitating intracellular zinc uptake to support antiviral immunity and intracellular defense mechanisms. This makes it ideal for immune resilience during cold, flu, or allergy seasons, and a favorite among longevity researchers for its effects on senescence and mitochondrial health.

Why It's Different

Most over-the-counter quercetin supplements are under-dosed or combined with unnecessary additives. Phenome Longevity’s Quercetin is designed for results-with high potency, bioavailability, and botanical integrity.

Pure and Potent

Standardized to ≥95% quercetin with zero fillers or artificial binders

Allergy-Focused

Naturally supports histamine balance without drowsiness

Longevity Aligned

Research-backed support for cellular repair and mitochondrial integrity

Synergy Ready

Complements our Bromelain, Vitamin C, and Glutathione formulas for multi-pathway immune defense