If you’ve spent any time shopping for cannabis — whether at our Stouffville store or anywhere else — you’ve seen “THC” and “CBD” stamped on basically every label. They’re the two most talked-about compounds in the plant, but a lot of people walk into a dispensary without a clear picture of what each one actually does.
Here’s the short, plain-language version.
What they are
THC and CBD are both cannabinoids — naturally occurring compounds the cannabis plant produces. There are more than a hundred of them, but these two get the spotlight because they’re present in the highest amounts and have the most studied effects.
- THC (tetrahydrocannabinol) is the compound that makes you feel “high.”
- CBD (cannabidiol) is non-intoxicating — it won’t get you high.
Same plant, very different effects on the body.
What THC does
THC binds directly to receptors in your brain (called CB1 receptors), which is why its effects are so noticeable. People typically describe a THC high as some combination of:
- Relaxation or euphoria
- Heightened senses — taste, music, humour
- Sometimes drowsiness, sometimes the opposite
- Increased appetite
It’s also where less-pleasant effects come from if you take too much: dry mouth, racing thoughts, anxiety, paranoia, or a generally unpleasant experience. This is why we always tell new customers to start low and go slow — start with a low dose, wait long enough to feel it, and only then decide if you want more. Our Beginner’s Guide to Cannabis Edibles goes deeper on this, especially the part about not re-dosing too early.
What CBD does
CBD interacts with the body differently — mostly through your endocannabinoid system, but without that direct CB1 binding. The effect is much subtler. Most people describe CBD as:
- Calming or steadying, without intoxication
- Useful for taking the edge off without affecting daily activities
- Often paired with THC to “soften” the high
CBD has been studied for a range of potential applications, but we’ll leave the medical conversation to medical professionals. In Canada, only Health Canada-authorized cannabis products may make formal therapeutic claims, and we don’t.
THC to CBD ratios — what they mean
When you see something like “10:1 THC:CBD” or “1:1” on a label, that’s the ratio of one to the other. A quick decoder:
- High THC, low or no CBD (like 20% THC, <1% CBD): a straightforward, classic high.
- 1:1 balanced: noticeable high, but the CBD takes the sharper edges off — often described as smoother.
- High CBD, low THC (like 1:10): minimal high, mostly calming. Good for daytime use, or for people new to cannabis who want to feel something but stay clear-headed.
If you’re not sure what ratio is right, ask any of our budtenders — that’s literally what we’re here for.
How to read it on a label
Cannabis labels list THC and CBD in two forms:
- Total THC / Total CBD — what you’ll actually get after the product is heated (smoked, vaped, or cooked).
- THC / CBD in acid form (THCA, CBDA) — what’s in the product before it’s been activated.
For most consumers, the “Total” number is the one that matters. If you want the full breakdown of what’s on the label, we wrote a separate guide: How to Read a Cannabis Label.
So which one do you want?
Depends on what you’re after.
- Stronger, classic high — go for higher THC.
- Mellow without being intoxicated — try high-CBD or CBD-dominant.
- Balanced and manageable — look for 1:1.
- Brand new to cannabis — start with CBD-dominant or 1:1 at a low dose.
There’s no “right” answer. Just what works for your body and what you’re trying to do with it.
If you want to talk it through in person, drop by our store on Main Street in Stouffville. We’ll walk you through the menu, no pressure.