Aller max is a unique non drowsy formula based on the key ingredients of quercetin dihydrate, bromelain, and Vitamin C. Quercetin dihydrate is a naturally occurring bioflavonoid derived from flower buds. Bromelain is an enzyme derived from pineapple stem. Aller max also provides Vitamin C as well, alongside herbs like stinging nettle and cayenne.Ingredients:Supplement FactsServing Size: 2 capsulesServings Per Container: 50Amount Per Serving% Daily ValueVitamin A (as retinyl palmitate)2,500 IU50%Vitamin C (as calcium ascorbate)250 mg417%Pantothenic Acid (as d-calcium pantothenate)200 mg2,000%Zinc (as zinc monomethionine)10 mg67%Quercetin (from Sophorae japonica linn)(flower)250 mg*N-Acetyl Cysteine200 mg*L-Histidine (free form)200 mg*Bromelain (2,000 GDU/g) (from pineapple)100 mg*Stinging Nettle (urtica dioica) (leaf)100 mg*Cayenne (fruit)20 mg*Grape Seed Extract (95% polyphenols equal to 4.75 mg)5 mg**Daily Value not established. GDU - Gelatin Digestive Units.Other IngredientsCellulose (capsule shell), magnesium stearate, silica.NO: Yeast, wheat, soy, gluten, milk, salt or artificial color.This product has been manufactured at an NSF GMP Registered facility.