75 years of experience, testing and recommendations from medical doctors have made Sinupret + internationally recognized. The #1 herbal sinus product in Germany, it has been recommended by physicians more than 3,500,000 times. A proprietary blend of five carefully selected herbal extracts, European Elder, Common Sorrel, Cowslip, European Vervain and Gentian, Sinupret+ is a powerful solution for you and your family. -Supports the Upper Respiratory System. -Strengthens the immune system. -Promotes Healthy Nasal Passages. -Does not contain stimulants, caffeine, ephedra or pseudoephedrine. -Placebo-controlled, double-blind, multiple-randomized extensive clinical tests and trials confirm safety and effectiveness. -Sinupret+ has been cited for its safety and efficacy in several medical journals and letters including: the American Botanical Council Clinical Guide to Herbs, the Journal of Clinical Pharmacology, Phytopharmaka, Planta Medica, Natural Standards - Herbs and Supplement Reference, and Pharmacist's Letter.