The production of QiYun drinks is subject to the highest quality standards, with each batch tested for quality and purity. Before being transported to Europe each consignment is tested and authorised by the relevant Malaysian health authority. Samples are also regularly tested by certified laboratories.
Notable side effects are not known. You can take our Qiyun drinks a day to be without adverse side effects. However, you will notice that your vital functions supported, or are stimulated again. Should you nevertheless choose to have unusual symptoms with, please search on a doctor.