21st Century Green Tea Herbal Slimming Tea is a 100% natural dietary supplement that combines traditional herbs to support weight management efforts. This caffeine-free beverage can be enjoyed hot or cold and is designed to help increase metabolic activity while supporting healthy digestion. Each box contains 24 tea bags. The product should be used as part of a healthy reduced calorie diet and exercise program. For best results, steep one tea bag in hot water for 2-5 minutes and consume 15-30 minutes before or during meals. As with any dietary supplement, consult healthcare provider before use if pregnant, nursing, on medications or have medical conditions.