A cart holds cannabis oil, terpenes, and the hardware that heats and delivers it. In a clean cart, that's the entire list.
Heavy Hitters builds to exactly those three, and the reason isn't purity for its own sake. Every additive you leave out is room for more cannabis, and you taste the difference on the draw. Three components, nothing borrowed.
This page is the inventory: what each component is, what gets added when a maker is stretching the oil, and how a batch document tells the two apart.
Oil, terpenes, hardware. Anything beyond those three was added to change viscosity, cut cost or fake a flavor, and a certificate of analysis plus a straight answer from the maker will tell you which.
The oil is the cannabis, and it arrives by one of two routes. A solvent-based route dissolves the resin, then removes the solvent and verifies the removal on the residual solvents panel. A solventless route separates it mechanically with ice water and pressure.
What the oil looks like tells you less than people assume. Distillate is clear to pale gold because refining removed everything that wasn't the target cannabinoid, including the color. Live rosin is darker and more opaque because it kept more of the plant. Neither appearance is a quality signal on its own. Color varies with the input material too, so two batches of the same product can differ visibly and test identically. Darkening over time is usually oxidation rather than contamination, and it affects flavor before it affects anything else.
Our Ultra Extract line is the refined route, built from fresh clean trim. Our Live Rosin line is the mechanical one. Both fill carts, and they taste nothing alike, which is the point of offering both. Neither is the premium one by default. A refined oil made from good input beats a mechanical extract made from mediocre material, and the reverse holds too. What the route determines is character rather than rank.
The outcome you notice is the draw. Oil that hasn't been thinned pulls with some resistance and delivers a fuller flavor, and oil that has been thinned pulls easily and tastes thinner.
Terpenes are the aromatic compounds, and they're the single biggest variable in how a cart tastes. This is where the interesting decisions get made.
In a solventless product, they're mostly still there, carried through because the process never stripped them. In a refined product, they were removed during distillation and something has to go back in, which creates a choice.
Cannabis-native terpenes came from cannabis. Botanical terpenes are the same families of molecules sourced from other plants, blended to approximate a cannabis profile. Both will smell like something. Only one tastes like the strain, because only one came off that plant.
We use cannabis-native terpenes. It costs more, it's invisible on a shelf, and it's the reason our refined oil still tastes like cannabis rather than like a flavor concept. If you ask a budtender one question about any cart, make it this one. The answer also tells you something about the brand's economics. Cannabis-native terpenes have to be captured and stored, which means the producer either runs their own extraction or pays someone who does. Botanical terpenes can be ordered from a catalog.
Hardware is the part buyers ignore and the part that decides what actually reaches them.
A cart is a tank, a mouthpiece and a ceramic heating element. The element is usually a ceramic coil, and ceramic matters because it heats evenly and doesn't contribute a flavor of its own the way older wick materials did. We use ceramic hardware for that reason.
Two failure modes come from hardware rather than oil. A coil that runs too hot scorches the terpenes and gives you a burnt taste that no amount of good oil survives. Ceramic that can't wick a thick oil fast enough starves and clogs, which is why viscosity and hardware have to be matched rather than chosen separately.
Hardware also carries a testing consequence worth knowing. Traces of solvent used in manufacturing and cleaning can appear on a residual solvents panel long after extraction is over, including on solventless products. That's a hardware and handling artifact rather than a formulation one. It also means a solventless label and a zero on the residual solvents panel are two different promises. The first describes extraction. The second describes everything that happened afterward, including the tank the oil was filled into.
Viscosity is the thread connecting all three components, and it explains most of what goes wrong in a cart.
Cannabis oil is naturally thick. A ceramic coil has to wick that oil steadily to the heating element, and hardware is engineered around a fairly narrow viscosity window. Too thin and the oil floods the coil, which gives you leaking and a harsh draw. Too thick and it starves, which gives you a clog and a burnt taste from a coil heating dry.
That window is why cutting agents exist in the first place. Adding a thinning agent is the cheapest way to move an oil into the range the hardware wants, and it happens to stretch the volume at the same time. The additive solves a real engineering problem and quietly solves a margin problem alongside it.
The alternative is to match the hardware to the oil rather than the oil to the hardware. That's the more expensive route and it's the one we take, which is why the ceramic spec matters to us as much as the extraction does.
Cutting agents, and they exist for one reason: cannabis oil is the expensive part.
The four you'll see named are propylene glycol, vegetable glycerin, polyethylene glycol and MCT oil. Each is a thinning or carrier agent that changes viscosity, and none of them is cannabis. A cart cut with them contains less of what you paid for while still looking correct in the tank. The proportions can be substantial. A cutting agent isn't a trace ingredient the way a flavoring is, since the whole point is to occupy volume, so a cut cart can carry a meaningful fraction of something that never came from a plant.
The giveaway, in our experience, is rarely the taste, because a well-blended cut cart tastes acceptable. It's the price and the paperwork. Heavy Hitters uses none of the four, and never vitamin E acetate.
Partly, and knowing the limit matters as much as knowing the method.
Every batch sold in California clears seven panels before sale, covering cannabinoids, residual solvents, heavy metals, pesticides, microbial impurities, mycotoxins and foreign material. Those panels catch contamination well. That's a genuine strength and worth saying plainly, because the panel set is thorough about the things it covers and the action levels are strict. What they don't do is itemize a recipe, because cutting agents aren't contaminants and mostly don't appear on the panel list at all.
So the honest workflow is two-part. The certificate of analysis confirms the batch is clean of the things it tests for and ties the document to your package. The ingredient question goes to the brand, and a maker who won't answer it plainly has answered it. Price is the other signal, and it's blunt but reliable. Cannabis oil sets a floor on what a cart can cost to make. A cartridge priced well below comparable products is telling you that something in the tank costs less than cannabis.
Cannabis oil, terpenes and the hardware that heats and delivers it. In a cart with nothing added, that's the complete list. Anything else present was included to change viscosity, reduce cost or supply a flavor the oil no longer had.
Thinning or carrier agents added to change the viscosity of vape oil, most commonly propylene glycol, vegetable glycerin, polyethylene glycol and MCT oil. None comes from cannabis, and each one displaces cannabis in the tank.
Ask the brand what's in the oil besides cannabis and terpenes, then check the price against comparable products. A batch document confirms the cart is clean of contaminants, and it usually won't itemize additives, so the direct question does more work.
No. A solventless product usually keeps its own, since the process never removed them. A refined product had them stripped during distillation, so anything you taste was reintroduced afterward.
They aren't dangerous, and they aren't cannabis. Botanical terpenes are the same molecule families sourced from other plants, so a cart using them can smell appealing while tasting unlike the strain named on the package.
Pick up whatever cart you own and see how many of the three components you can account for. The Ultra Extract vape is where that build sits, and the all-in-one range carries it across formats. The store locator will find a licensed shop where someone can pull up the batch document.
Testing laboratories, California Department of Cannabis Control. Accessed August 23, 2026.
