Many of them are sold online, which is cheap, but there is no guarantee. If you really plan to buy online, it is recommended to choose a seller with high credibility of Taobao.
The main components of Amway's Bilijian are vitamins and minerals, which play a balanced nutritional role for the body, but it is not suitable for fitness. As mentioned earlier, protein is needed for fitness, and whey protein is the best. As for the brand, it is not very important, as long as it is true.