AllerDx® brings quick relief from pollen, dust, dander, and more in just 10-20 minutes! Breathe Easy with AllerDx ("Aller Dee-Ex"), the most effective natural seasonal support available. Clinical studies show AllerDx improves nasal airflow in 10-20 minutes. It also addresses key underlying causes of sensitivities to environmental irritants.* Clinically tested in 2 blinded, placebo-controlled studies Within 10-20 minutes people showed significantly improved nasal airflow* In the short term, provides quick relief* In the long term, rebalances the body's reactions and curbs over-sensitivity* Decades of research & development in clinical practice Quality controlled from farm to finished product Natural plant-based herbal supplement Manufactured in an NSF GMP-certified facility Non-drowsy & stimulant free Vegan AllerDx is faster acting and more effective than any other natural product for environmental sensitivities.* Suggested use: For maintenance use, adults take 2 capsules once or twice per day. For immediate use, adults take 2 capsules, followed by another 2 capsules within a half hour if needed; repeat up to 3 times per day as needed (12 capsules total). Shipping: Shipping is always free via USPS. Store Locations: Find a store near you here.