NATURAL SINUS SUPPORTComprehensive Seasonal Nasal and Sinus Support Powerful Blend of Flavonoids, Antioxidants, Enzymes and Botanicals Supports Seasonal Challenges from Common Environmental Allergens Features Quercetin, Bromelain, Stinging Nettles Leaf, and NAC Promotes Healthy Nasal and Sinus Passages Non GMO, Gluten and Dairy free Manufactured in FDA compliant facilities Professional Strength Formula Physician Grade and Science Backed