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About product and suppliers:
        Alibaba.com offers 2,744 keratin protein products. About 59% of these are hair treatment, 7% are hair conditioner, and 1% are beauty products. 

A wide variety of keratin protein options are available to you, such as free samples, paid samples. 

There are 2,723 keratin protein suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Canada, and Brazil, which supply 90%, 2%, and 2% of keratin protein respectively. 

Keratin protein products are most popular in North America, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 928 with GMP, 831 with Other, and 223 with ISO9001 certification.