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About product and suppliers:
        Alibaba.com offers 145 collagen membrane products. About 35% of these are face mask, 2% are waterproof membrane, and 2% are vacuum cavitation system. 

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

There are 141 collagen membrane suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Japan, which supply 92%, 2%, and 2% of collagen membrane respectively. 

Collagen membrane products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 139 with Other, 29 with ISO9001, and 24 with GMP certification.