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About product and suppliers:
        Alibaba.com offers 52,131 human hair grade 10a products. About 88% 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 52,100 human hair grade 10a suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 93%, 4%, 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 2,213 with Other, 1,375 with ISO9001, and 142 with TL9000 certification.