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About product and suppliers:
        Alibaba.com offers 1,584 huperzine a products. About 49% of these are herbal extract, 2% are vitamins, amino acids and coenzymes, and 1% are fruit extract. 

A wide variety of huperzine a options are available to you, such as herbal extract, fruit extract. You can also choose from leaf, seed. As well as from free samples, paid samples. 

There are 1,558 huperzine a suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United States, and Taiwan, which supply 99%, 1%, and 1% of huperzine a respectively. 

Huperzine a products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 511 with Other, 430 with ISO9001, and 151 with GMP certification.