Aller-C features quercetin, which helps to support healthy histamine levels, and has demonstrated potent antioxidant activity, with the ability to potentiate the actions of vitamin C. Features a 60% bioflavonoid complex, which will also synergistically potentiate the antioxidant potential of vitamin C, and support the strength of capillaries.Features pure, uncut, bromelain, an enzyme derived from pineapple, which helps to support healthy nasal and respiratory airways. Bromelain also has the added benefit of increasing the absorption of quercetin, both supporting the body\'s inflammation response and histamine processes.Recommendation: 2-3 capsules two to four times daily between meals, or as directed by your healthcare practitioner.Caution: None known if directions are followed.