100% natural. Pure authentic Oriental green. 190 mg of antioxidants per serving. Serve iced or hot. Caffeine Meter (Average Milligrams of Caffeine per 8 oz Serving): 40 mg. Harris natural Green Tea is quality packed in a four-sided bag for faster, more flavorful brewing. Green Tea: Harris Green Tea is 100% natural. Enjoy its unique flavor, green color and soothing taste. Environmentally-Sensitive, Too: The special paper used in these tea bags is processed with no harsh chemicals that could affect flavor or contribute to environmental problems. Packed in USA.