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About product and suppliers:
        Alibaba.com offers 7,726 collagen hydrating products. such as free samples, paid samples. 

There are 7,726 collagen hydrating suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of collagen hydrating respectively. 

Collagen hydrating products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 2,985 with Other, 1,396 with GMP, and 1,114 with ISO9001 certification.