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About product and suppliers:
        Alibaba.com offers 3,575 biotin products. About 36% of these are vitamins, amino acids and coenzymes, 17% are vitamins, and 6% are beauty products. A wide variety of biotin options are available to you, such as medicine grade, cosmetic grade, and food grade. You can also choose from free samples, paid samples. There are 3,960 biotin suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United States, and Taiwan, which supply 90%, 3%, and 1% of biotin respectively. Biotin products are most popular in North America, Western Europe, and Domestic Market. You can ensure product safety by selecting from certified suppliers, including 516 with ISO9001, 293 with Other, and 273 with GMP certification.
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