Aller-C®

Best-selling supplement ALLER-C® is a potent and effective combination formula designed to help maintain normal respiratory and sinus function.* Aller-C features Isoquercitrin, a clinically studied nutraceutical offering the benefits of quercetin with superior absorption and bioavailability, to help promote cellular antioxidant defenses and a normal histamine response.* Aller-C’s combination formula also includes Vitamin C for immune support, Citrus Bioflavonoids to help maintain capillary stability, and Bromelain to promote inflammatory balance.* This supplement can be used for maintaining and supporting the proper levels of enzymes and physiological factors necessary for normal respiratory and sinus function during seasonal challenges.* Approved for sale in Canada.
Packaging and labels may vary.
Vital Nutrients' logo, brands, text, trademarks, graphics, product datasheets, brochures, videos, and photo images are the property of Vital Nutrients, and are used with permission. Copyright © 2026.
For California Residents: California Health and Safety Code section 25249.5 et seq. (Proposition 65) Warning : Consuming this product can expose you to chemicals including lead, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, go to www.P65warnings.ca.gov/food.
*FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.vitalnutrients.net for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.
Best-selling supplement ALLER-C® is a potent and effective combination formula designed to help maintain normal respiratory and sinus function.* Aller-C features Isoquercitrin, a clinically studied nutraceutical offering the benefits of quercetin with superior absorption and bioavailability, to help promote cellular antioxidant defenses and a normal histamine response.* Aller-C’s combination formula also includes Vitamin C for immune support, Citrus Bioflavonoids to help maintain capillary stability, and Bromelain to promote inflammatory balance.* This supplement can be used for maintaining and supporting the proper levels of enzymes and physiological factors necessary for normal respiratory and sinus function during seasonal challenges.* Approved for sale in Canada.
Packaging and labels may vary.
Vital Nutrients' logo, brands, text, trademarks, graphics, product datasheets, brochures, videos, and photo images are the property of Vital Nutrients, and are used with permission. Copyright © 2026.
For California Residents: California Health and Safety Code section 25249.5 et seq. (Proposition 65) Warning : Consuming this product can expose you to chemicals including lead, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, go to www.P65warnings.ca.gov/food.
*FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.vitalnutrients.net for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.
Take two capsules twice daily
Or as directed by your healthcare professional.