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        Alibaba.com offers 3,683 biotin products. About 34% of these are vitamins, amino acids and coenzymes, 18% are vitamins, and 9% are immune & anti-fatigue. A wide variety of biotin options are available to you, such as cosmetic grade, feed grade, and food grade. You can also choose from free samples, paid samples. There are 3,707 biotin suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United States, and Canada, which supply 90%, 3%, and 1% of biotin respectively. Biotin products are most popular in North America, Western Europe, and Eastern Europe. You can ensure product safety by selecting from certified suppliers, including 565 with ISO9001, 289 with Other, and 238 with GMP certification.
        
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