Belongs. Black card 6 hours is the Guangzhou black card food and beverage company limited in 2010 launched a energy drink, belongs to the functional drinks, functional drinks belong to health care products, black card 6 hours belong to health care products. Black card 6 hours by the introduction of raw materials from Brazil, the company's 2005 original China Guangzhou City, is also a functional drink, containing refreshing hormone-like is extracted from the Brazilian natural plant Guarana.