Cannabis labels can feel overwhelming when you just want to find something that works for your needs. The good news is that once you understand what those details mean, reading cannabis product labels becomes second nature.
In this guide, Cannabis & Glass will break down everything you need to know about interpreting THC and terpene contents so you can shop with confidence in Ontario, Oregon. Read on below to find out how to read a cannabis label.
Understanding Cannabinoid Information: THC, CBD, and Beyond

The cannabinoid section tells you what compounds are in your product and how strong they are. THC (tetrahydrocannabinol) is the primary psychoactive compound that creates the high. You’ll see it listed as a percentage on flower or in milligrams on edibles and concentrates.
CBD (cannabidiol) is non-intoxicating and often appears alongside THC to create balance. Products with higher CBD ratios tend to feel mellower and less intense. You might also spot minor cannabinoids like CBG (cannabigerol), which some users find clear-headed, or CBN (cannabinol), which shows up in products marketed for nighttime use.
Total Active Cannabinoids (TAC) is the sum of all cannabinoids in a product. A higher TAC doesn’t always mean stronger effects, but it can indicate a fuller spectrum of compounds working together. When learning how to read a cannabis label, pay attention to the breakdown beneath the TAC number to see what you’re actually getting.
Your Cannabis Label Potency Guide: What THC Percentages Really Mean

THC percentages guide you toward the right intensity, but they don’t tell the whole story. Low THC (5% to 10%) offers a gentle introduction for beginners or anyone who wants mild effects. Moderate THC (10% to 20%) hits a sweet spot for most experienced users, while high THC (20%+) delivers potent effects that are best suited for seasoned consumers.
But this isn’t the full story. Two strains with identical THC levels can feel completely different based on their terpene profiles and minor cannabinoids, so don’t let the number be your only decision-making tool. Look at the full picture the label provides.
For edibles, check the milligrams per serving and total milligrams per package. Starting with 2.5 to 5 mg is smart if you’re new to edibles. Effects take 30 to 90 minutes to kick in, so start small and don’t take more until a couple of hours have gone by.
Are you ready to explore products with clear potency information? Browse the Cannabis & Glass menu online before your visit.
Decoding Cannabis Product Labels: Terpenes and Their Effects

Terpenes are aromatic compounds that give cannabis its smell, flavor, and much of its character. They also influence how a product makes you feel. Many labels list the top two or three terpenes and their percentages.
When learning how to read a cannabis label, you’ll encounter these terpenes:
- Myrcene: Earthy and musky, often linked with relaxation and body-heavy effects
- Limonene: Bright citrus scent that may uplift your mood
- Pinene: Pine aroma associated with focus and mental clarity
- Linalool: Floral and lavender-like, known for calming qualities
- Caryophyllene: Peppery notes that interact with different receptors than THC
Total terpene content usually ranges between 2% and 4%. Higher terpene levels often mean stronger flavor and aroma, but they also shape the overall experience. Two products with similar THC can feel different depending on the dominating terpenes.
What Else Your Cannabis Label Reveals
Beyond cannabinoids and terpenes, labels include other helpful details. The strain name and type (indica, sativa, or hybrid) give you a starting point for expected effects:
- Indica strains tend to be lean and relaxing.
- Sativas tend to be energizing.
- Hybrids blend both qualities.
Harvest and packaging dates tell you how fresh the product is. Newer flower typically offers more pungent aroma and flavor.
For edibles and tinctures, serving sizes are critical. The label breaks down THC or CBD per serving and the total number of servings per package to help you dose accurately and avoid taking more than you intended.
Stop by Cannabis & Glass in Ontario to ask our team any questions about specific labels or products.
Your Partner for Well-Labeled Cannabis in Ontario
At Cannabis & Glass, we understand that decoding cannabis product labels shouldn’t feel like solving a puzzle. Our knowledgeable staff is ready to walk you through any label details. We carry a wide selection of flower, edibles, concentrates, and vapes with clear, tested labeling.
Call Cannabis & Glass at (541) 907-1234 to learn more about how to read a cannabis label or to discover the perfect product for your needs in Ontario, Oregon.
