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About product and suppliers:
        Alibaba.com offers 3,038 keratin protein products. About 59% of these are hair treatment, 11% are shampoo, and 6% are hair conditioner. 

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

There are 3,018 keratin protein suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Brazil, and Canada, which supply 90%, 2%, and 1% 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 1,081 with GMP, 836 with Other, and 263 with ISO9001 certification.