Canada's Competition Bureau lists three items that must appear on prepackaged non-food consumer products: the product identity, the net quantity and the dealer's identity.
English and French
Product identity and net quantity have to appear in both English and French. A valid metric symbol counts as bilingual. The dealer's name and address can be in either language, and the address cannot be a post office box.
Metric units
Net quantity uses metric units: mL or L for liquids, g or kg for solids and most aerosols. A US label that shows only ounces does not meet this.
Imported goods
An imported product can show "imported by" or "imported for" in English and French before the Canadian dealer's name and address. It can instead show the place of origin beside that name and address, or the foreign dealer's name and address.
Plan it before the first order
Food, cosmetics and other regulated categories have rules of their own, so check your category before you print. We go through packaging with each brand before an order is placed.
Source: Competition Bureau Canada, What must be on the label. General information only, not legal advice.