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        Alibaba.com offers 1,899 b12 pharmaceutical grade products. About 71% of these are vitamins, amino acids and coenzymes, 70% are animal pharmaceuticals, and 12% are antibiotic and antimicrobial agents. A wide variety of b12 pharmaceutical grade options are available to you, such as medicine grade, cosmetic grade, and feed grade. You can also choose from free samples, paid samples. There are 1,900 b12 pharmaceutical grade suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Malaysia, and Vietnam, which supply 98%, 1%, and 1% of b12 pharmaceutical grade respectively. B12 pharmaceutical grade products are most popular in North America, South America, and Eastern Europe. You can ensure product safety by selecting from certified suppliers, including 371 with Other, 237 with ISO9001, and 75 with GMP certification.
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