A cannabis label can show THC as a percentage on flower and as milligrams per piece on an edible. It may also list THCA, total THC, TAC, terpenes, and package totals. Start by checking what each number measures before comparing two products.
These are the label details worth reading first, whether you are browsing online or looking at a package in the store.
Begin With the Product Type and Package Size
First identify what the package contains and how much is inside. Flower and concentrates are usually listed by weight, often in grams. Vape products may list oil by weight or volume. Edibles typically list the number of pieces, milligrams per serving, and total milligrams in the package.
The unit matters. Ten milligrams in one gummy is different from 10 milligrams spread across several pieces. A flower percentage cannot be compared directly with the milligrams in an edible.
THC and THCA
THC is an intoxicating cannabinoid. Flower labels often express cannabinoid concentration as a percentage by weight; edibles usually show milligrams per piece or serving. A 25 percent figure on flower and 25 milligrams in an edible are different measurements.
Flower labels may list both THC and THCA, the acidic form that can convert to THC when heated. They may also show a calculated “total THC” or “potential THC.” Use the label’s stated total for that product instead of adding THC and THCA percentages yourself.
CBD and Other Cannabinoids
CBD is a non-intoxicating cannabinoid that may appear as a percentage, a milligram amount, or a ratio with THC. Products may also list CBN, CBG, CBC, THCV, or other cannabinoids. A ratio such as 1:1 describes the relative amounts of two cannabinoids, but you should still check the milligrams per serving to understand the actual quantity.
Cannabinoid abbreviations do not guarantee a specific effect. Treat them as product information, then consider format, serving size, personal experience, and guidance from a qualified healthcare professional when relevant.
What TAC Means
TAC usually means total active cannabinoids. It combines multiple measured cannabinoids, but the exact calculation can vary by lab or menu. Look at the individual numbers before using TAC to compare products.
TAC is not another name for THC. It may include CBD, CBG, CBN, and other measured cannabinoids, so it can be higher than the product’s total THC. A higher TAC is not a quality score.
How to Read Terpene Information
Terpenes are aromatic compounds that contribute to the smell and flavor of cannabis. A label or menu may list total terpenes as a percentage and identify individual terpenes such as myrcene, limonene, caryophyllene, pinene, or linalool.
Terpene information can help shoppers compare aroma and flavor profiles. It should not be used as a precise prediction of how a product will affect every person. Source genetics, cannabinoid content, freshness, product format, and individual response all matter.
Serving Size and Total Package Potency
For an edible or drink, locate three numbers: THC in one piece or serving, the number of servings, and THC in the whole package. Check whether a serving is one piece or a smaller portion.
For example, a package with ten gummies containing 10 milligrams of THC each has 100 milligrams of THC in the entire package. The package total is not a recommended serving. New Jersey limits ingestible cannabis products to 10 milligrams of THC per serving and 100 milligrams per package.
Ingredients Allergens and Product Warnings
Edibles and beverages should include an ingredient list and allergen information. Review these sections if you avoid ingredients such as gelatin, dairy, gluten, nuts, or certain sweeteners. Vape and concentrate shoppers should look for the product type and any listed ingredients or additives rather than assuming every cartridge contains the same formulation.
Read the state warnings and storage instructions as well. Cannabis should remain in its original child-resistant packaging and be kept away from children and pets. Do not drive while impaired.
Batch and Test Information
Look for the batch or lot number and other available production or testing details. Some packages provide a QR code or other way to view a certificate of analysis, but the information displayed can differ by product.
A certificate of analysis, or COA, reports results for a tested batch. If one is available, match its batch or lot number to the package before comparing its potency or contaminant results.
A Simple Label Review Before You Buy
- Confirm the product type and package size.
- Find total THC and the amount per serving when applicable.
- Review CBD and other listed cannabinoids.
- Use TAC as supporting information, not as a quality score.
- Check terpene information for aroma and flavor clues.
- Read ingredients, allergens, warnings, and storage directions.
- Match the batch information to the available laboratory results.
Compare Current Products at BluLight
Use this checklist for any product format. If a menu listing leaves out a serving size, ingredient, or test detail, ask the BluLight team to help you find it on the package.
Browse the current Woodbury Heights menu or Gloucester City menu before visiting. Product potency and inventory change, so rely on the label attached to the product you are purchasing.
Frequently Asked Questions
Why might a flower label show more than one THC number
It may list THC, THCA, and a calculated total THC separately. Read the units and use the total specified by the label rather than adding the values yourself.
Does TAC tell me which product is better
No. TAC sums measured cannabinoids under a particular lab or menu convention; it does not measure freshness, quality, or how a product will feel to you.
Why are edibles measured in milligrams instead of percentages
A milligram amount tells you how much THC is in a piece, serving, or package. A percentage describes concentration by weight and is less useful for edible portions.
What is a cannabis COA
It is a report of testing for a particular batch. If you can access it, match the report’s batch number to the package you are buying.
