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About product and suppliers:
        Alibaba.com offers 1,290 tea theanine products. About 33% of these are tea extract, 23% are herbal extract, and 1% are immune & anti-fatigue. 

A wide variety of tea theanine options are available to you, such as tea extract, herbal extract. You can also choose from leaf, shell, and seed. As well as from green tea extract, aloe vera extract. And whether tea theanine is drum, or bottle. 

There are 1,282 tea theanine suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and Germany, which supply 99%, 1%, and 1% of tea theanine respectively. 

Tea theanine products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 415 with ISO9001, 263 with Other, and 124 with GMP certification.