HERBADIREKT plant extracts are immediately sealed airtight after manufacture. This way, the valuable ingredients are protected against external influences such as oxidation and they keep their freshness and purity for a long time. Purity: We refrain from using any unnecessary additives to avoid intolerances. We also declare all ingredients we use in our products. You won´t find any genetically modified raw materials in our products. Every product is GMO-free!. High quality since 1989: All products are subject to the strict standards and controls of the food control administration and are tested regularly and thoroughly by independent laboratories for purity and ingredients, so we can guarantee safe products. Produced in Germany. Ingredients from EU- and non-EU countries. HERBADIREKT is a product line of Warnke Health Products, which aims to provide high quality and carefully processed plant extracts as single products or useful combinations. In doing so, we pay special attention to an ideal bioavailability, which improves the resorption of the vital substances by the body. Herbadirekt Quercetin 500mg highly dosed, vegan, 60 capsules for 2 months, lactose-free, fructose-free, gluten-free, yeast-free, gelatin-free.