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About product and suppliers:
        Alibaba.com offers 3,664 biotin manufacturers products. About 36% of these are vitamins, amino acids and coenzymes, 6% are antibiotic and antimicrobial agents, and 3% are herbal supplement. A wide variety of biotin manufacturers options are available to you, such as cosmetic grade, food grade, and feed grade. You can also choose from free samples, paid samples. There are 3,704 biotin manufacturers suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United States, and Taiwan, which supply 90%, 3%, and 1% of biotin manufacturers respectively. Biotin manufacturers products are most popular in North America, Western Europe, and Eastern Europe. You can ensure product safety by selecting from certified suppliers, including 508 with ISO9001, 260 with Other, and 247 with GMP certification.
        
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