Myth vs. Fact: Higher THC Means a Stronger High
Myth: The higher the THC percentage, the stronger the high.
Fact: THC percentage is one number on the label, and it's a poor predictor of how an experience actually feels.
Walk up to any counter in New Mexico and you'll hear it: "What's the highest THC you've got?" It makes sense. With beer and wine, a higher ABV reliably means stronger. So we assume cannabis works the same way. It doesn't, and the research backs that up.
What the research found
In 2020, researchers at the University of Colorado Boulder published a study in JAMA Psychiatry that put this myth to the test. They followed 121 regular cannabis consumers. Half used flower, half used concentrates.
Flower users smoked products at roughly 16% or 24% THC. Concentrate users used products at roughly 70% or 90% THC. As expected, the concentrate group ended up with far more THC in their blood.
Here's the surprise: across groups, people reported similar levels of feeling high. Their balance and cognitive test results were also similar. More THC on the label did not line up with a proportionally stronger experience.
One study isn't the final word, and these were experienced consumers. But it's a strong signal that the number alone doesn't tell the story.
What else shapes the experience
If THC percentage isn't the whole picture, what is? A few things matter just as much:
Terpenes. These aromatic compounds give each strain its smell and flavor, and they're a big part of why two products with the same THC number can feel completely different.
Other cannabinoids. CBD, CBG and others are in the mix too. The full profile matters more than one headline number.
Format. Flower, pre-rolls, concentrates and beverages all behave differently. Beverages and edibles take longer to kick in than smoking, so patience matters.
Tolerance. A regular consumer and a first-timer will have very different experiences with the same product.
Label accuracy. Testing can vary from lab to lab, so even the number itself comes with some wiggle room.
How to read a label instead
Next time you're looking at a product, try this:
Check the terpenes, not just the THC. If the label or your budtender can tell you the dominant terpenes, that's useful information.
Know your format. A pre-roll, a concentrate and a beverage will each hit differently, even at similar THC levels.
Start low and go slow, especially if you're newer or trying a new format.
Ask your budtender. They hear what customers actually experience every day. That's often more useful than any single number.
Pay attention to what you like. Keep a mental note (or a real one) of products you enjoyed. You'll start to notice patterns that have nothing to do with THC percentage.
The bottom line
Higher THC doesn't automatically mean a better or stronger experience. The terpenes, the format, your tolerance and the whole cannabinoid profile all play a part. Treat THC percentage as one data point, not the scorecard.
Got a cannabis myth you want us to tackle next Monday? Let us know.
For adults 21 and older. This article is for educational purposes only and is not medical advice. Keep cannabis out of reach of children and pets. Do not drive or operate machinery after consuming cannabis.