Acne therapies are classified as natural health products (NHPs) if they contain ingredients from Table 1. Applicants applying for a natural product number (NPN) can access the appropriate forms and guidance at:
http://www.hc-sc.gc.ca/dhp-mps/prodnatur/applications/licen-prod/form/index_e.html

Acne therapies are classified as drugs if they contain benzoyl peroxide. Applicants applying for a drug identification number (DIN) can access the appropriate forms and guidance at:
http://hc-sc.gc.ca/dhp-mps/prodpharma/applic-demande/index_e.html

To view the entire monograph, posted on Health Canada’s website, complete with Table 1, please visit: Natural Health Product Monograph – Acne Therapy