| Flavor profile | Sweet Candy, Tropical Fruit, Gas |
|---|---|
| Reported feel | Talkative, Giggly, Relaxed |
| Strain type | Balanced hybrid |
What Customers Are Saying
★★★★★
“The Runtz vape is well made and works well to relax.”
BR
Verified Purchase · Runtz THCa Live Resin Cart
★★★★★
“Very good products! I got Maui wowie and runtz, love them both”
Leeza M.
Verified Purchase · Runtz THCa Live Resin Cart
★★★★★
“The lemon cherry gelato and runtz were great for daytime use with great flavor.”
Richard R.
Verified Purchase · Runtz THCa Live Resin Cart
★★★★★
“One of my favorite strains! I love how it tastes and it’s also really good for relaxing.”
Amey S.
Verified Purchase · Runtz THCa Live Resin Cart
★★★★★
“Pleasant, tasty and gets the job done!”
Emily H.
Verified Purchase · Runtz THCa Live Resin Cart
★★★★★
“This is the REAL DEAL. Excellent.”
Daniel H.
Verified Purchase · Runtz THCa Live Resin Cart
⭐
6,000+ Verified Reviews
Average 4.8 / 5 stars across the catalog.
⚖️
Woman-Owned
Founded in 2017 and still woman-run.
📰
As Seen In
Forbes, Rolling Stone, Allure, Vice.
What Is Inside the Runtz Cart
Two things go in the tank: Runtz live resin THCa and the terpenes that came off the same plant. The hardware is the other half of the answer, because a cart that runs cool is what lets those terpenes reach you intact.
🔥
Live Resin THCa
A full gram, frozen at harvest instead of dried, which is what keeps the candy note from cooking off.
🍋
d-Limonene
Leads the profile and does the citrus-candy work you taste first. Same compound that sharpens citrus peel.
🌿
Beta-Myrcene
Sits second and does the settling. It’s why a bright, sweet strain still lands calm instead of jumpy.
🌲
Alpha-Pinene
Third and sharpest of the three. A faint pine edge that keeps the sugar from flattening out.
🔌
Ceramic Core, 510 Thread
Heats the oil evenly and screws onto any standard battery you already own. No proprietary fittings.
🚫
Nothing But Oil and Terps
Zero PG, zero VG, no MCT oil and no Vitamin E acetate. Just oil and terpenes, undiluted.
Science Corner: The Limonene Trial
Runtz leads with d-limonene, and that happens to be the one terpene with a controlled human trial behind it. A 2024 study in Drug and Alcohol Dependence put twenty healthy adults through nine double-blind sessions: vaporized THC on its own, d-limonene on its own, and the two inhaled together. Limonene alone did nothing measurable. Paired with the higher THC dose, it cut self-reported jitters and unease while leaving every other effect unchanged. That’s isolated compounds in a lab, not this cart, and we’re not claiming it transfers. It is a decent explanation for why limonene-forward strains keep getting called friendly. PubMed PMID 38498958.
How It Works and How Much To Start With
A cart lands within a couple of minutes and settles inside fifteen, which makes it the easiest format to steer by feel. One draw, ten minutes, and you know where you are. Nothing you swallow gives you that. The trade is duration: inhaled effects taper over two to three hours where an edible can run twice as long.
With Runtz the second draw rarely changes the character of the first, it just adds more of it. That’s a useful property in a cart, because carts make it very easy to keep going without ever deciding to.
| Format | Onset | How long | Character |
| Runtz THCa cart, sold here | 2 to 5 minutes | 2 to 3 hours | Moderate, wide margin for error |
| Runtz THCa disposable | 2 to 5 minutes | 2 to 3 hours | Same oil, same curve |
| THCa flower | Under 2 minutes | 1 to 2 hours | Fastest on, shortest tail |
| THCa prerolls | Under 2 minutes | 1 to 2 hours | Same lift, fixed dose |
| Delta 8 carts | 2 to 5 minutes | 2 to 3 hours | Noticeably gentler than THCa |
| Edibles | 30 to 90 minutes | 4 to 6 hours | Strongest, hardest to steer |
Third-party lab tested, results on our lab page.
Already own a 510 battery? This is the cheapest gram of Runtz we sell.
Runtz THCa Cart FAQ
A Runtz THCa cart is a full gram of live resin THCa oil in a 510-thread cartridge, made from Runtz and nothing else. Runtz is a balanced hybrid, close to a real 50/50, and it’s the strain people mean when they say candy weed. Live resin means the plant went into a freezer at harvest instead of onto a drying rack, which is what keeps the sweet-sour top note from cooking off during extraction. The cart screws onto any standard 510 battery, so if you already own one you’re set. There’s no proprietary fitting and no adapter to hunt down. You will also see this typed as runts cart, runty carts or runt cart. Same product. People move fast on a keyboard and the spelling suffers.
Runtz tastes like sweet candy first, tropical fruit under that, and a gassy finish that stops the whole thing from turning into syrup. The sour edge is the part most descriptions miss. It comes from the Zkittlez half of the family, and it’s why a Runtz cart is still interesting on the fortieth draw instead of the fourth. The Gelato half brings the creamy, rounded body that keeps it from tasting sharp. On a cart the flavor reads cleaner than it does on flower, because there’s no combustion smoke sitting on top of it. If you prefer fuel and pepper to sugar, you’ll find this one cloying, and that’s a fair reason to buy a different strain. Sour Diesel is the obvious swap.
Every THCa cart we make runs in the 22 to 28% THCa range, and Runtz sits in that band with the rest of the line. What makes Runtz feel different isn’t the number, it’s how wide the usable range is. With most strains there’s a narrow gap between not enough and too much. Runtz has a broad middle where a second draw mostly gives you more of the same feeling rather than a different one, so a small misjudgment costs you very little. That makes it a sensible first cart. Take one short draw, wait ten minutes, then decide about the next one. If you have never vaped before, one draw tells you plenty. And a single cart is enough to work out where your own ceiling sits.
A single Runtz cart is $60 for a full gram. Two are $100, which saves you $20, and three are $150, which saves you $30. Subscribe and save takes 20% off your first order and 15% off every order after that, and you can skip, change or cancel whenever you want. A battery isn’t included, because most people shopping for a 510 cart already own one. If you don’t, our batteries page has four that fit. Per gram, the cart is the cheapest way to buy Runtz from us once you have hardware. The all-in-one disposable starts at the same price but includes the battery, so it’s better math on a first purchase. These are the prices we charge today, not an intro rate that climbs on you later.
Both, and that’s the actual argument for buying Runtz over something else. It’s an even hybrid rather than a hybrid that quietly leans one way, so lift and calm show up together instead of in sequence. Customers describe it as comfortable more often than as strong, and as happy more often than as either energizing or sedating. In practice one cart covers a creative afternoon and a nine o’clock wind-down without you swapping hardware halfway through the day. If you want something that pushes harder in one direction, Durban Poison is the daytime pick and King Louis XIII is the evening one. Runtz is what you buy when you would rather own one cart than two. That flexibility is most of the pitch.
Any 510-thread battery fits, and lower voltage is better. Our own battery guide puts the low band at 2.5 to 3.0 volts, and that is where a live resin cart belongs. Running a cart hot burns off the light citrus-candy terpenes first, so the exact thing that made you pick Runtz is the first thing you lose. It darkens the oil faster too. Screw the cart on finger-tight and no further, because overtightening is the most common reason a cart won’t fire. If you don’t own a battery yet, our batteries page lists the four we sell, they all carry adjustable voltage, and each one runs this cart properly out of the box. Charge it fully before the first draw. Start low, then climb.
A full gram usually goes two or three weeks for someone taking a couple of draws a day, and a lot less if you share it. How long you pull and how hot you run it matter more than the calendar. Store it upright with the cap on, somewhere cool and dark. Upright matters more than people expect, because a cart left on its side long enough can flood the airway and start tasting harsh. Heat is the other enemy, so a dashboard in July will ruin one faster than anything else. If the oil thickens and the draw goes stiff in a cold room, warm the cart in your hand for a minute first. Never put a flame near it. Heat and light are what age the oil, not time on the shelf.
Yes. Assume it will and plan around that. A standard urine screen looks for THC metabolites, and it does not care whether what you used was hemp-derived, federally compliant, or bought somewhere it is fully legal. None of those distinctions exist on a lab report, and no panel we have seen makes them. How long it stays detectable depends on how often you use it, your body composition and the cutoff the lab uses, so nobody can give you an honest number. Occasional users often clear in a few days. Regular users can come up positive for several weeks. If you get tested for work, probation or a sport, don’t buy this. We would rather lose the sale than have you fail a screen you needed to pass.
In most states, yes. Hemp-derived products containing less than 0.3% Delta 9 THC by dry weight are federally legal under the 2018 Farm Bill, and that is what this cart is. States write their own rules on top of the federal baseline, though, and a handful restrict THCa or hemp vapes specifically. We keep our shipping list current, and checkout will tell you if we can’t reach your address. You have to be 21 or older to order. Orders leave our facility within 48 hours. If your state changed its rules recently, checkout is the source of truth here, not this page, because we update the shipping list far more often than we rewrite product copy. When in doubt, put it in the cart and enter your address.
The oil is identical. We sell Runtz two ways, and both are the same live resin THCa. The cart is a gram on a 510 thread and needs a battery you supply, which makes it the cheapest per gram once you own one. The Runtz THCa disposable is that oil in an all-in-one pen that arrives charged, so it starts at the same price but includes hardware. Buy the disposable if this is your first. Buy the cart if you have a battery or plan to reorder. The Runtz strain profile goes deeper on lineage, and Rainbow Sherbet is its closest neighbor. Both formats are lab tested the same way and carry the same 22 to 28% THCa range, so hardware is the only real decision.
One gram, any 510 battery, and the sweet strain everybody else gets compared to.
Keep Exploring
The other way to buy Runtz, the batteries that fit it, its two closest cousins on our menu, and the lab page.
Runtz Strain Profile
Lineage, terpene order, and whether Runtz OG is the same thing.
Runtz THCa Disposable
Same live resin oil, battery built in and charged on arrival.
All THCa Carts, 12 Strains
The full cart menu, plus the two and three pack bundles.
510 Batteries
All four we sell, each with adjustable voltage and a warranty.
Lemon Cherry Gelato Cart
Daytime-leaning strains, compared side by side.
Rainbow Sherbet THCa Cart
Closest thing to Runtz on our menu if you want it creamier.
Gelato Strain Profile
Half of Runtz parentage, and where the rounded body comes from.
Certificates of Analysis →
Current third-party lab results for the whole catalog.
