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About product and suppliers:
        Alibaba.com offers 5,743 resveratrol products. About 50% of these are herbal extract, 3% are fruit extract, and 2% are grape seed extract. 

A wide variety of resveratrol options are available to you, such as powder, oil. You can also choose from leaf, bark, and seed. As well as from hawthorn extract, honeysuckle extract, and reishi extract. And whether resveratrol is free samples, or paid samples. 

There are 5,577 resveratrol suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and Taiwan, which supply 91%, 4%, and 1% of resveratrol respectively. 

Resveratrol products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,610 with Other, 1,538 with ISO9001, and 747 with GMP certification.