15 days. A box of Ling Ji Xian Hanfang Huanxian Tea is 30 packs, and a box can be drunk for 15 days, which can help you lose weight, but the specific effect varies from person to person. When drinking tea water, it can help the body burn fat, thus cleaning up the toxins in the intestines and playing a role in shaping. Contains dietary fiber, which can accelerate the metabolism of human skin and avoid fat accumulation.