Hello, there is a set of numbers on the bottle cap. That is to verify the authenticity. You can call directly and find out for yourself. It′s on the house. Tetra Pak Calcium is a compound amino acid chelated calcium capsule, which is produced by American mineral Company and Sichuan Vio Pharmaceutical Co., Ltd.. If it is produced by this company, it is a quasi-brand of Chinese medicine. It is a dietotherapy, not a health food, nor a food.
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