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About product and suppliers:
        Alibaba.com offers 58,121 human hair grade 10a products. About 84% of these are hair extension. 

A wide variety of human hair grade 10a options are available to you, such as free samples, paid samples. 

There are 58,090 human hair grade 10a suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 91%, 5%, and 2% of human hair grade 10a respectively. 

Human hair grade 10a products are most popular in North America, Africa, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 2,369 with Other, 2,060 with ISO9001, and 165 with OHSAS18001 certification.