Every legal cannabis product sold in Canada comes with a standardized label. These labels were designed with consumer safety in mind, but they can be confusing if you don't know what you're looking at. Here's a field guide.
What the label is required to show
By law, every cannabis product sold in Canada must display the total THC content (as a percentage for flower, or milligrams for oils, edibles, and capsules), the total CBD content in the same format, the net weight or volume, rotating health warnings from Health Canada, licensed producer information, and an excise stamp — the small coloured stamp indicating the product has been through the federal process and is legally produced.
The numbers that matter most
THC percentage in flower tells you what portion of the dry weight is THC. A flower at 20% THC contains 200mg of THC per gram. Most beginner-friendly flower sits in the 10–16% range.
Total THC vs Activated THC — you may see both listed. Total THC includes THCA, the non-psychoactive precursor that converts to THC when heated. Activated THC refers to what's already in active form. For flower you're going to smoke or vaporize, total THC is the relevant number.
Milligrams per serving in edibles and oils is the single most important number for dosing. A 10mg package of gummies might come as two 5mg pieces, or one 10mg piece. Read both the per-serving and total-package information carefully — they're not always the same.
Common label confusion
Some producers use terms like "light" or "soft" to describe texture or flavour — not potency. Don't assume those words mean lower THC.
The excise stamp colour indicates province, not quality or potency. Each province has its own colour.
Serving size and package size are different things. An edible package capped at 10mg total may still have two or more pieces inside.
What the label won't tell you
The terpene content usually isn't there unless the producer has chosen to include it voluntarily. The label also can't tell you how the product will affect you specifically, or whether it's suitable for your health situation or current medications. That's where a pharmacist or knowledgeable budtender comes in.
Mary Jane says: "The label is a conversation — not a verdict. Use it as a starting point, ask the budtender your questions, and don't leave the store until you understand what you're buying."
The Ask Mary Jane membership covers cannabis education for beginners — from labels to dosing to everything in between.
