Vitamin C-PAK® with Quercetin Orange Flavor 30 Servings

Vitamin C with Quercetin Effervescent Powder — Four-Nutrient Immune Stack

Dr. Mercola Vitamin C-PAK® with Quercetin builds on the foundational Vitamin C-PAK formula by adding quercetin bioflavonoid to the existing vitamin C, vitamin D3, and zinc combination — creating a four-nutrient immune stack that addresses immune function through an additional and scientifically compelling pathway. Quercetin is a plant bioflavonoid with the most extensive published research base of any polyphenol for immune and inflammatory support, with activity across multiple molecular targets including NF-kB, NLRP3 inflammasome, and mast cell stabilization.

Quercetin and vitamin C work synergistically in two documented ways: quercetin recycles oxidized vitamin C back to its active reduced form (extending vitamin C's antioxidant lifespan), and vitamin C in turn prevents quercetin oxidation and enhances its cellular stability. Most significantly, quercetin functions as a zinc ionophore — it facilitates the transport of zinc ions across cell membranes into the intracellular space where zinc exerts its antiviral immune effects. This quercetin-zinc combination has attracted significant scientific and clinical interest, making Vitamin C-PAK with Quercetin a meaningfully more sophisticated immune formula than the standard version.

• Vitamin C + Vitamin D3 + Zinc + Quercetin — four-nutrient synergistic immune stack
• Quercetin as zinc ionophore — drives intracellular zinc delivery
• Quercetin-vitamin C synergy — mutual antioxidant recycling and stability
• Effervescent orange powder format — rapid absorption and easy daily compliance
• 30 single-serving packets per box
• Non-GMO, gluten-free

Dissolve 1 packet in 8 oz of water daily, or as directed by your healthcare provider.