With natural flavors. 100% Natural. Serve hot or iced. 100 mg of antioxidants (flavonoids) per serving! Brighten your day with mint! Lipton blends pure black tea leaves with natural mint flavor to create an invigorating and refreshing tea. Lipton tea is a wonderful way to treat yourself - any time of the day. Average milligrams of caffeine per 8 oz serving: 40.