CANADA
Health Canada
http://www.hc-sc.gc.ca/index-eng.php
Drugs and Health Products
http://www.hc-sc.gc.ca/dhp-mps/index-eng.php
Natural and Non-prescription Health Products
http://www.hc-sc.gc.ca/dhp-mps/prodnatur/index-eng.php
Licensed Natural Health Product Database
http://www.hc-sc.gc.ca/dhp-mps/prodnatur/applications/licen-prod/lnhpd-bdpsnh-eng.php
Search licensed natural health products
https://health-products.canada.ca/lnhpd-bdpsnh/index-eng.jsp
USA
U.S. Food and Drug Administration
Dietary Supplements
http://www.fda.gov/Food/DietarySupplements/default.htm