The THC percentage on a cannabis label tells you how much THC is in the product by weight, usually shown as total THC after accounting for THCA. It is a potency guide, not a promise of effects; dose, serving size, product type, tolerance, and other cannabinoids matter just as much.
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Key Features to Check on a THC Label
- Total THC vs. THC vs. THCA: Look for total THC, often calculated as THCA × 0.877 + THC.
- Serving size and servings per package: Dose per serving is more useful than the jar’s overall percentage.
- Product weight: Percentage multiplied by weight gives an approximate total THC amount.
- Cannabinoid profile: CBD, CBG, CBN, and other cannabinoids can change the experience.
- Terpene information: When present, it adds aroma and variety context, though it is not standardized.
- Batch and test date: Batch-specific, recent lab results are more reliable than a generic number.
- Lab name or COA: A certificate of analysis helps verify potency and contaminant testing.
- Required state warnings: These confirm the product is packaged for legal sale in your market.
Label Specs That Matter
Start with the total THC percentage and the serving size, then compare products by milligrams of THC per serving rather than percentage alone. Flower, pre-rolls, edibles, and concentrates are labeled differently, and a high percentage in a small serving may deliver less THC than a lower percentage in a larger one. Also check whether the label lists THCA separately, because raw cannabis contains mostly THCA and the label’s total THC should reflect decarboxylation. Look for a batch number, test date, and lab name so you can confirm the number applies to the product you are holding.
Shipping and Returns
Because cannabis rules vary by state, confirm local eligibility before ordering; eligible orders ship discreetly with tracking. If your product arrives damaged or does not match the listing, contact support within the stated window for replacement or return under the shop policy.
Does a Higher THC Percentage Mean Better Weed?
No. Higher THC can mean stronger impairment or more anxiety for some people, while lower-potency products with a balanced cannabinoid profile may be more enjoyable. Choose based on dose, tolerance, and desired experience.
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How Do I Calculate THC per Serving?
Multiply the product weight by the total THC percentage, then divide by the number of servings. For example, 0.5 g at 20% total THC is about 100 mg total, so divide carefully if you are portioning it.
Why Do THC Percentages Vary Between Batches?
Genetics, grow conditions, harvest timing, curing, and lab testing can all shift potency. Treat each batch’s label and COA as the most specific guide.