Natures Plus Quercetin with Vitamin C and Bromelain 60 Tablets is a dietary supplement based on vitamin C and substances of nutritional or physiological purposes. It provides an answer to seasonal problems leading to intolerance, fatigue and annoyance. Quercetin is indeed a flavonoid not produced by the body which fights against allergenic elements.Enriched with vitamin C and bromelain (an enzyme extracted from pineapple), it protects and energizes the digestive system. Vitamin C contributes to the normal functioning of the immune system.Colouring agent-free. Artificial preservatives-free. No yeast. No wheat. No corn. No soy. No milk.