4 oz Green Tea/Camellia sinensis Extract We prepare our Green Tea Extract from the young leaves of Camellia sinensis plants which are Certified Organically Grown on the Ambootia Tea Plantation in Darjeeling, India without the use of chemical fertilizers,pesticides or herbicides.To assure optimal quality, the leaves are handharvested at their peak of potency and are then promptly heat-dried to stabilize their antioxidant catechins and flavonoids. These leaves are then shipped direct to our laboratory and thoroughly extracted.Our Green Tea is never fumigated or irradiated.Dry leaf / menstruum ratio: 1 : 5