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        Alibaba.com offers 20,399 b12 products. About 9% of these are vitamins, amino acids and coenzymes, 6% are animal pharmaceuticals, and 1% are immune & anti-fatigue. A wide variety of b12 options are available to you, such as cosmetic grade, food grade, and medicine grade. You can also choose from free samples, paid samples. There are 20,437 b12 suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Malaysia, which supply 96%, 1%, and 1% of b12 respectively. B12 products are most popular in North America, Southeast Asia, and Mid East. You can ensure product safety by selecting from certified suppliers, including 3,521 with Other, 3,001 with ISO9001, and 769 with GMP certification.
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