Natural Factors Quercetin 500 mg with Zinc and Copper for Added Immune Support, 60 Capsules

This formula contains zinc and copper, which help strengthen your immune system. Quercetin, a powerful antioxidant, works in synergy with zinc and copper to neutralize free radicals and reduce oxidative stress. It provides fast-acting defense for your sinus and upper respiratory system. Quercetin 500 mg is completely plant-based and sourced sustainably.

• Give your immune system powerful support with Quercetin 500 mg
• Breathe easy with year-round defense for your seasonal allergies;* Supports healthy aging, cellular and heart health
• Supports sinus and upper respiratory health;* Helps your body better absorb and utilize vital nutrients like Vitamin C
• Take just 1 capsule 1-2 times each day; Our capsules are plant-based and suitable for vegans and vegetarians
• Independently tested and third-party certified for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency