Black Card 6 Hours is an energy drink launched by Guangzhou Black Card Food & Beverage Co., Ltd. on 20 10. By adding enough natural extract of Guarana, the energy characteristics of Guarana products are fully reflected. Pure natural guaranacin extracted from the seeds and pulp of guarana fruit has high biological activity, and its refreshing effect is far from that of energy drinks simply added with caffeine in the market. Compared with synthetic caffeine, natural guarana has no physiological toxicity and addiction, and its metabolism is sufficient, so that consumers can enjoy a vibrant life and obtain a higher level of health protection.