A single wax pen hit typically delivers about 2 to 5 mg of THC. That estimate assumes a 3-second draw from a cartridge testing 70 to 90 percent THC, which is normal for legal concentrates. Longer pulls, higher-potency oil, and higher-voltage devices can push one hit past 10 mg.
What determines the THC in one hit?
A wax pen hit is not a fixed dose. The amount of THC you inhale depends on four variables that stack on top of each other.
- Oil potency: Legal concentrate cartridges commonly test between 60 and 90 percent THC, so a gram holds 600 to 900 mg of THC.
- Draw length: A 1-second puff vaporizes far less oil than a 5-second pull.
- Device heat and airflow: Higher voltage and open airflow vaporize more oil per second.
- Inhalation depth: A deep lung hold absorbs more THC than a shallow puff.
How much THC is in a whole cartridge?
A half-gram cartridge at 80 percent THC contains roughly 400 mg of THC. A full gram at the same potency holds about 800 mg. If each hit uses 3 to 5 mg of oil, that works out to somewhere between 100 and 160 hits per half-gram cart.
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How does a wax pen hit compare to a dab or a joint?
A dab is measured by the user, so it is far larger than a pen hit. A 25 mg dab of 80 percent concentrate delivers about 20 mg of THC in one breath, roughly four to ten times a vape pen hit.
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A 0.5 g joint of 20 percent flower contains about 100 mg of THC, but a large share burns off in sidestream smoke. Inhaled THC from that joint is often estimated at 20 to 50 mg, spread across many puffs.
How long do the effects last?
Inhaled THC reaches the bloodstream within seconds to a few minutes. Peak effects usually arrive in 10 to 30 minutes and fade over 1 to 3 hours. Vaped concentrates hit faster and harder than flower because the THC is already activated and absorbed through the lungs.
How can you control your dose?
- Check the lab label for total THC and calculate mg per hit from the oil weight.
- Start with one short 2 to 3 second draw if you are new to concentrates.
- Wait at least 15 minutes before taking another hit.
- Keep voltage low, since high heat burns through oil quickly.
- Track how many hits you take so a cartridge lasts a predictable number of sessions.
Is a wax pen hit stronger than a flower hit?
Yes, usually. A flower hit from a pipe delivers a few milligrams of THC at 15 to 25 percent potency, while a wax pen hit delivers a similar volume of vapor at three to four times the concentration. That is why concentrate tolerance builds faster than flower tolerance for many consumers.
Why do two people feel the same hit differently?
Body weight, tolerance, liver enzymes, and how deeply you inhale all change the effect. A 3 mg hit may feel mild to a daily concentrate user and strong to someone trying a pen for the first time. Treat every new cartridge as a new dose until you know how it lands.