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About product and suppliers:
        Alibaba.com offers 293 pharmaceutical castor oil products. About 30% of these are castor oil, 19% are essential oil, and 6% are carrier oil. 

A wide variety of pharmaceutical castor oil options are available to you, such as bulk, gift packing, and drum. You can also choose from crude, refined, and modified. As well as from season, cooking. And whether pharmaceutical castor oil is organic, or common. 

There are 287 pharmaceutical castor oil suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and South Africa, which supply 73%, 21%, and 1% of pharmaceutical castor oil respectively. 

Pharmaceutical castor oil products are most popular in North America, South Asia, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 104 with Other, 40 with ISO9001, and 15 with GMP certification.