Quick answer: On a Canadian CBD label, start with the bold Total CBD and Total THC numbers, and note whether they’re per gram (mg/g) or per unit (mg). Then check the red THC symbol (it appears only if the product has more than 10 µg/g of THC), the intended use, net weight or unit count, the ingredients, the lot number and packaging date, and the provincial excise stamp. A label that promises health benefits is a red flag: those claims aren’t allowed on cannabis labels in Canada.
CBD labels can look like a wall of numbers, and two products that seem identical on the shelf can be very different once you read the fine print. The good news is that in Canada, CBD products fall under the same Cannabis Act labelling rules as THC products, so every legal label follows the same layout. Once you know where to look, you can read any CBD oil, capsule, gummy or topical in under a minute. Here’s what each part of a CBD label means and what to check before you buy.
Why CBD Labels in Canada All Look the Same
Canada doesn’t treat CBD as a supplement. CBD products are cannabis products, so they come in plain, child-resistant packaging with a yellow health warning box, black-on-white product information and very limited branding. Health Canada sets the rules but doesn’t pre-approve individual labels, so the responsibility for accuracy sits with the producer. That’s why it pays to know what a correct label looks like. (If you’re new to CBD in general, start with 5 things you didn’t know about CBD.)
9 Things to Check on a CBD Label
1. Total CBD and Total THC
These are the most important numbers on the label, and they’re required to be printed in bold on the main panel. “Total” means the amount you’d get once the product is used as intended, counting the raw acid forms (CBDA and THCA) that convert into CBD and THC when heated. Some labels also show plain “CBD” and “THC” figures; those are the amounts as packaged, before conversion. For comparing products, always use the Total numbers. Our guide to what THC percentages really mean explains the THCA math in more detail.
2. The unit: mg/g or mg per unit
The unit changes depending on the product type, and mixing them up is the most common mistake shoppers make:
- Oils and other extracts not in units: Total CBD in mg/g (milligrams per gram of product). If the oil comes with a pump or metered dispenser, you’ll also see the amount per activation.
- Capsules and softgels: Total CBD per unit in mg, plus the number of units in the package.
- Edibles and beverages: Total CBD per unit and Total CBD for the whole package, both in mg.
- Topicals: Total CBD in mg or mg/g, per unit or per container.
- Dried flower and pre-rolls: Total CBD in mg/g.
3. The CBD-to-THC ratio
“CBD” on the front doesn’t mean THC-free. Divide Total CBD by Total THC to get the ratio. A product with 20 mg/g CBD and 1 mg/g THC is a 20:1 CBD-dominant product; one with 10 mg CBD and 10 mg THC per gummy is 1:1 and will be intoxicating. If you want little or no THC, look for a Total THC close to zero, not just a big CBD number.
4. The red THC symbol
The standardized cannabis symbol (a red octagon with a cannabis leaf and the letters THC) must appear in the upper-left area of the label when a product contains more than 10 µg/g of total THC. That’s a very low threshold, so many CBD products still carry it. If the symbol is missing, the product should contain 10 µg/g of THC or less, which effectively makes it a THC-free CBD product.
5. Class of cannabis and intended use
Every label states the class of cannabis (for example, cannabis extract, cannabis topical or edible cannabis). Extracts and topicals must also say how they’re meant to be used: for ingestion, for inhalation or for use on skin. A CBD cream labelled for skin use isn’t meant to be swallowed, and a vape extract isn’t meant to be eaten, so this line matters.
6. Net weight, unit count and the math
The label lists the net weight (or net volume for drinks), and for unit products, the number of units and the weight of each. Use these to work out how much CBD you’re actually getting. For an oil labelled Total CBD 25 mg/g with a net weight of 30 g, the bottle holds about 750 mg of CBD (25 × 30). For a pack of 30 capsules at Total CBD per unit 20 mg, it’s 600 mg in total. That’s the fairest way to compare price between two products.
7. Ingredients and allergens
Oils, capsules, topicals and edibles must list their ingredients, in descending order by weight. For CBD oils, the first ingredient is usually a carrier oil such as MCT (often from coconut), sunflower or olive oil. Extracts and edibles must also name any food allergens, so check this line if you have a nut, soy or other allergy. Edibles go further and include a nutrition facts table.
8. Lot number, packaging date and expiry
Every label must show a lot number and the date the product was packaged. The lot number is how a product is traced if it’s ever recalled, so keep the package until it’s finished. An expiry date is optional for oils and topicals (it appears only if the producer has tested stability), while edibles with a shelf life of 90 days or less must show a “best before” date. Fresher is generally better, so compare packaging dates when you have a choice. The label also lists recommended storage conditions, such as keeping the product in a cool, dark place.
9. Excise stamp and QR code
Legal cannabis packages carry a small 20 × 40 mm excise stamp, colour-coded by province, that shows federal duty has been paid. Products with less than 0.3% THC are exempt, so a very low-THC CBD product may not have one. Many labels also include a black-and-white QR code that links to extra information such as a certificate of analysis (COA) or terpene profile. If there’s a COA, check that its CBD and THC numbers match the label.
Full-Spectrum, Broad-Spectrum and Isolate
You’ll often see these terms in the optional information on a label. They’re commonly used like this:
- Full-spectrum: keeps the plant’s other cannabinoids and terpenes, including some THC.
- Broad-spectrum: keeps other cannabinoids and terpenes but with most or all THC removed.
- Isolate: CBD on its own, with the other plant compounds removed.
These are marketing terms, not regulated categories, so don’t rely on them alone. The Total THC figure is the number that tells you how much THC is really in the product. Curious about terpenes? See what gives cannabis its smell and taste.
Example: Reading a CBD Oil Label
Here’s how the key lines on a typical CBD oil label might look (the numbers are illustrative):
| Label line | Example | What it tells you |
|---|---|---|
| Class of cannabis | Cannabis extract | It’s an oil or concentrate, not an edible |
| Intended use | For ingestion | Taken by mouth, not vaped or applied |
| Total CBD | 25 mg/g | About 25 mg of CBD per gram of oil |
| Total THC | 0.8 mg/g | Roughly a 30:1 CBD-to-THC ratio |
| Net weight | 30 g | About 750 mg CBD in the bottle |
| Ingredients | MCT oil, cannabis extract | Carrier oil first, then cannabis |
| Lot / packaged on | Lot 12345 / 2026 SE 02 | Traceability and freshness |
Red Flags on a CBD Label
- Health or cosmetic claims. Cannabis labels in Canada can’t suggest a health or cosmetic benefit. A product promising to treat anxiety, pain or sleep is breaking the rules.
- No Total CBD or Total THC figure. These are mandatory on every cannabis product label.
- “Hemp seed oil” sold as CBD. Hemp seed oil is pressed from seeds and isn’t a meaningful source of CBD.
- Bright colours, cartoons or flashy branding. Legal packaging is plain, with a yellow health warning and a child-resistant container.
- No lot number or packaging date. Without them, there’s no way to trace the product.
When you’re finished with a product, our guide to recycling cannabis packaging in Canada covers what can go in the bin.
Shop CBD at The Purple Leaf
Ready to put this into practice? Browse our CBD products and compare Total CBD and Total THC side by side. If you’re trying a product with THC in it, read up on the right edibles dosage for beginners and what to do if you get too high. You can also explore edibles and flower. For health questions about CBD, talk to your doctor or pharmacist, especially if you take other medications.
Frequently Asked Questions
What does “Total CBD” mean on a label?
Total CBD is the amount of CBD the product delivers when used as intended, including CBDA that converts to CBD with heat. It’s the number to use when comparing products.
Does a CBD product in Canada contain THC?
It can. Check the Total THC figure on the label. Products with more than 10 µg/g of THC must display the red standardized cannabis symbol.
How do I work out how much CBD is in a bottle of oil?
Multiply the Total CBD (mg/g) by the net weight in grams. For example, 25 mg/g × 30 g is about 750 mg of CBD.
Why doesn’t my CBD product have an excise stamp?
Cannabis products with less than 0.3% THC are exempt from the excise stamp, so some very low-THC CBD products won’t have one. Products with more THC should carry the stamp for the province where they’re sold.
Can a CBD label say it helps with sleep or pain?
No. Cannabis product labels in Canada can’t suggest health or cosmetic benefits. Treat any product making those claims with caution.
Weekday orders (Monday to Friday) placed before noon (12:00 PM EST) are delivered the same day; see our London, Ontario delivery page for details. Cannabis is for adults 19+ in Ontario.
Buy weed online in Canada · Same-day weed delivery in London, Ontario on weekday orders placed before noon (12:00 PM EST).
