Classification is based upon the NNHPID compendium of monographs. NPN submissions can attest to one or more ingredient monographs as a part of the application process. Classification of products based on formulations are as follows:
Class I - Product attests to a single ingredient monograph
Class II - Product attests to multiple ingredient monographs
Class III - One or more ingredients cannot attest a Health Canada monograph. Supplemental safety and efficacy data required.