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        Alibaba.com offers 4,739 biotin manufacturers products. About 30% of these are vitamins, amino acids and coenzymes, 18% are vitamins, and 4% are antibiotic and antimicrobial agents. A wide variety of biotin manufacturers options are available to you, such as feed grade, cosmetic grade, and medicine grade. You can also choose from free samples, paid samples. There are 4,747 biotin manufacturers suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United States, and Taiwan, which supply 91%, 2%, and 1% of biotin manufacturers respectively. Biotin manufacturers products are most popular in North America, Eastern Europe, and Southeast Asia. You can ensure product safety by selecting from certified suppliers, including 630 with ISO9001, 626 with Other, and 424 with GMP certification.
        
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