Every trū Chitosan lot is targeted to be our premier USP Inhalant or USP Parenteral chitosan. A slight miss of the USP-NF limits will disqualify it as USP. Still GMP, it is often superior to competitor’s best, making trū Chitosan’s GMP Oral the leading chitosan for pharmaceutical and medical device research and development exhibiting same behavior as our USP conforming chitosan. trū Chitosan is extracted exclusively from shrimp raised in a captive, controlled environment free from pollution, disease, antibiotics with an industry-first complete chain of custody. trū Chitosan’s GMP Oral delivers the quality and consistent behavior required for pharmaceutical and medical device research.