I purchased this at a Korean department store, but I have a lot of tea at home, so I'm selling it. This is a high-quality, handmade goji berry tea. *Caffeine-free* Benefits of Goji Berries: Goji berries, which have antioxidant properties and are considered one of the "three great medicines," are rich in rutin, betaine, carotene, vitamin A, and vitamin C. They are said to lower blood sugar and cholesterol levels, and promote the production of substances that boost immunity, thus having anti-cancer effects. Please refer to the fourth photo for detailed product information.