The antioxidants in green tea are traditionally coveted to promote immune health, cognitive function, metabolic health and heart health 5 mg extract standardized extract providing 6 % polyphenols for ultimate antioxidant support Standardized to 6 % polyphenol concentration FORMULATED WITH SCIENCE, CRAFTED WITH CARE: Based in Fargo, ND, our team of pharmacists, scientists, food nutritionists & quality experts ensure that every product is tested OUR QUALITY & HERITAGE : We're control freaks.in a good way! For nearly 5 years, Swanson Health has delivered science-backed health products worldwide. In 1969, we began in Fargo, ND with a mission to offer wellness solons that help people live simply healthier together. Our facilities are Good Manufacturing Practice (GMP) certified, and our purity and potency testing includes independent third-party labs. Clinical research, scientific consensus and usage traditions guide our innovation Fortify your body's defenses against the harmful effects of free radicals with the antioxidant nutrition of Swanson Green Tea Extract. Treasured for centuries as a health tonic, green tea is packed with antioxidant polyphenols that neutralize free radicals to protect vital organs and tissues throughout the body.