What is THCV? A Guide for Growers

Tetrahydrocannabivarin (THCV) isn’t nearly as famous as THC, but has quietly earned fanfare, especially in recent years. Growers who have never heard the term before may wonder: what is THCV in weed? And what does it do?

In short, THCV is a minor cannabinoid. While it’s often present in small concentrations of just  0.1–0.2% (ElSohly et al., 2024), certain African landrace sativas, such as Durban Poison, contain much higher levels. Although there’s no guarantee as to how a particular flower, gummy, or vape will affect you, some research supports the idea that significant levels of THCV may be associated with increased focus, motivation, and potential appetite suppression (Mendoza, 2025). Cannabis fans have noticed this pattern too, casually dubbing strains with significant levels of  THCV “diet weed.”

This guide walks growers through what we know so far about THCV’s effects and how these differ from THC’s. We’ll also explain which cultivars are associated with higher THCV levels, making it simpler for interested growers to zero in on the right group of strains.

What is THCV?

THCV belongs to a group called varin cannabinoids, a subclass of phytocannabinoids. While cannabinoids like THC and CBD have a five-carbon (pentyl) side chain, varin cannabinoids like THCV have a three-carbon (propyl) side chain (Haghdoost et al., 2024).

You may be wondering: how does this relate to THCV’s effects? In short, the length of a cannabinoid’s side chain can influence how it interacts with the body’s endocannabinoid system. For example, THC’s longer side chain activates CB1 receptors—the sites associated with weed’s intoxicating effects. On the flip side, some research notes that THCV’s shorter side chain may block or reduce CB1 activation, suppressing the qualities THC is known for, such as euphoria and increased hunger. (Mendoza, 2025)

How Does Cannabis Produce THCV and THC?

Weed plants make these two separate cannabinoids in different ways. THCV production does not begin with cannabigerolic acid (CBGA), the precursor associated with THC. Instead, the process begins with a compound called cannabigerovarinic acid (CBGVA). After enzymes convert CBGVA into tetrahydrocannabivarinic acid (THCVA), heating removes a carboxyl group, converting THCVA into THCV. This process is called decarboxylation, and also occurs when THCA becomes THC.

A Note on THCV’s Boiling Point

A recent study suggests the boiling points for THC and THCV are higher than once believed. While THC’s boiling point is frequently listed as 157°C, researchers suggest this figure may refer to the cannabinoid’s boiling point under a laboratory vacuum—not normal atmospheric conditions. The same theory may apply to THCV. A 2026 study estimated both cannabinoids’ boiling points under normal atmospheric pressure at 245°C (473°F) for THC and 378°C (712.4°F) for THCV (Turovsky et al., 2026). While a cannabis vaporizer isn’t designed to reach these temperatures to begin with, it’s also worth noting that both cannabinoids can evaporate at temperatures lower than their respective boiling points. To give an everyday example, heating water on the stove will produce steam long before the liquid boils. The takeaway here is that boiling-point charts alone can’t tell you how much THCV a vape will deliver.

THCV vs THC: Key Differences

The following table breaks down some of the most relevant differences between THCV and THC. 

Feature	THCV	THC
Chemical structure	Three-carbon side chain	Five-carbon side chain
Biosynthetic precursor	CBGVA, then THCVA	CBGA, then THCA
CB1 action	Can block or activate the receptor, depending on dose and experimental conditions	Partial agonist: activates the receptor
Intoxication	Limited human evidence; effects depend on dose and formulation	Established intoxicating effects
Appetite	Appetite-reducing findings mainly come from animal research	Commonly increases appetite
Boiling point	378°C (712.4°F)	245°C (473°F)
Typical flower content	Usually a minor component; genetics and testing matter	Often a major component in THC-dominant flower

Note: Chemical and pharmacological distinctions are summarized from Mendoza (2025); boiling-point estimates are from Turovsky et al. (2026).

Dose May Influence THCV’s Effects 

THCV’s effects may vary depending on the dose. As mentioned earlier, THCV can block some CB1 activity at lower doses (Mendoza, 2025). In a human study, higher doses of delta-8-THCV produced mild THC-like effects without measurable impairment (Peters et al., 2023). 

THCV May Modify Some THC Effects

In a small crossover trial, 10 individuals received 10 mg of THCV daily for five days before intravenous THC. Nine reported weaker THC effects after THCV, and some measures suggested protection against delayed-recall impairment. However, the rates of incorrectly recalling items that weren’t presented to the participants did increase, suggesting that THCV didn’t simply “cancel out” THC. (Englund et al., 2016).

THCV vs THCA vs THCP

THCA is THC’s acidic precursor, while THCVA is THCV’s acidic precursor. In this context, “precursor” simply means the compounds present before heat converts them into THC and THCV, respectively.

THCP, by contrast, is a separate cannabinoid entirely, rather than a precursor to THC or THCV. It has a seven-carbon side chain and showed stronger CB1 binding than THC, along with THC-like activity in animal research (Citti et al., 2019).

THCV Effects: What Does THCV Do?

THCV’s potential effects on energy, appetite, and blood sugar regulation are currently being studied. Early research offers some support for these THCV benefits, although results will vary between different effects and amounts.

Energy and Focus

Some research supports THCV’s reputation as an energizing cannabinoid. In an industry-sponsored, double-blind study, participants taking a THCV-rich gummy reported greater energy and motivation than those taking a placebo. The gummy also contained THC, so the findings apply to that combination rather than isolated THCV. Improved concentration has not yet been established (People Science, n.d.).

Appetite and Weight Loss 

THCV may influence appetite differently from THC, which commonly triggers the munchies. In a mouse study, purified THCV reduced food intake and produced short-term weight loss, supporting its potential appetite-suppressing effects (Riedel et al., 2009). However, a small human trial found no significant effect on appetite or weight loss. (Jadoon et al., 2016). THCV weight loss or weight management remains under investigation 

Blood Sugar and Metabolic Research

THCV has also shown some promise in blood sugar research. A 13-week pilot trial tested whether CBD, THCV, or a combination of the two changed HDL cholesterol levels in people with type 2 diabetes. While these treatments did not significantly affect HDL cholesterol levels, participants taking 5 mg of THCV twice daily had significantly lower fasting blood glucose than those taking a placebo (Jadoon et al., 2016). These findings support further research into THCV’s metabolic effects. However, it’s important to mention that THCV products should not be considered a treatment for diabetes or any other condition. 

Image credit: Onur Coşkun

THCV Strains 

Our seed library includes a number of THCV-associated cultivars. African sativas, in particular, are closely associated with above-average levels of this cannabinoid, with Durban Poison being one of the best-known examples. We’ve highlighted some other notable varieties below, and encourage those looking for even more options to browse our 100% sativa seeds menu. While high sativa content doesn’t necessarily mean higher THCV levels, this particular category can be a good place to start. 

Can You Increase THCV When Growing?

Genetics largely determine the ceiling for how much THCVA (THCV’s precursor) any one plant can produce. That said, growing conditions and post-harvest care play an important role too, as a thoughtful approach will increase your odds of reaching that ceiling. They just can’t turn a low-varin plant into a high-varin one. 

Genetics and Plant Variation

“High-THCV” is a claim that needs supporting cannabinoid analysis, not just a familiar strain name. Individual plants can differ, which is why discussions of varin-rich genetics often involve phenotype variation.

Does An Earlier Harvest Preserve More THCV?

Some growers suggest that harvesting sooner may result in higher amounts of THCV. While these observations can be valuable, keep in mind that this outcome is more of a possibility than a proven outcome.

Curing and Storage: What Does the Evidence Show?

Research shows that temperature, light exposure, and storage duration can alter cannabis cannabinoid profiles. While THC and CBD have been studied more extensively, some research shows that temperature, light exposure, and storage duration can alter cannabis cannabinoid profiles (Zamengo et al., 2019).

Is THCV Legal? (Gummies, Vapes, and Flower)

In the US, hemp-derived THCV products are sold under the 2018 Farm Bill’s framework of no more than 0.3% delta-9 THC by dry weight. State rules vary, however, and meeting that threshold does not automatically make every product legal. As of October 20, 2026, the newer federal restrictions affecting finished hemp-derived cannabinoid products have not taken effect; those changes are scheduled for December 11, 2026 (Congressional Research Service, 2026).

Some commercial THCV is extracted from cannabis, while some is synthesized from CBDV—a related cannabinoid, not CBD (Arvida Labs, 2025). THCV gummies and vapes may blend it with delta-9 THC, delta-8 THC, or other cannabinoids, so “THCV” does not mean THC-free. Check a batch-matched certificate of analysis (COA) for cannabinoid amounts and contaminant testing.

For growers, buying any cannabis seeds, including THCV seeds, and legally growing them are separate questions. Cannabis seeds are sold under hemp rules or marketed as collectible souvenirs, as Pacific Seed Bank does. Neither automatically permits cultivation. Consult PSB’s existing US seed-legality content and check your state and local growing requirements before planting.

Image credit: Kindel Media 

Some Closing Thoughts

If higher-THCV strains sound like something you’d like to explore, we recommend taking a look at our seed library. Our sativa category can be an especially helpful group to begin with, as African sativa landraces tend to have higher levels of THCV than other choices.

FAQs

References

Arvida Labs. (2025, August 19). How is THCv made: Production methods for B2B partners. https://www.arvidalabs.com/post/how-is-thcv-made

 

AskGrowers. (n.d.). Power Plant. https://askgrowers.com/strains/power-plant-strain-review

 

Benton, E., & Ritchey, C. (2025, March 26). Everything you need to know about THCV, the so-called “diet weed.” Men’s Health. https://www.menshealth.com/health/a39865342/what-is-thcv/

 

Citti, C., Linciano, P., Russo, F., Luongo, L., Iannotta, M., Maione, S., Laganà, A., Capriotti, A. L., Forni, F., Vandelli, M. A., Gigli, G., & Cannazza, G. (2019). A novel phytocannabinoid isolated from Cannabis sativa L. with an in vivo cannabimimetic activity higher than Δ⁹-tetrahydrocannabinol: Δ⁹-tetrahydrocannabiphorol. Scientific Reports, 9, Article 20335. https://doi.org/10.1038/s41598-019-56785-1

 

Congressional Research Service. (2026, September 28). Changes to the statutory definition of hemp and implications for agricultural policy (IF13136). https://www.congress.gov/crs-product/IF13136

 

ElSohly, M. A., Majumdar, C. G., Chandra, S., & Radwan, M. M. (2024). A 10-year trend in cannabis potency (2013–2022) in different geographical regions of the United States of America. Frontiers in Public Health, 12, Article 1442522. https://doi.org/10.3389/fpubh.2024.1442522

 

Englund, A., Atakan, Z., Kralj, A., Tunstall, N., Murray, R., & Morrison, P. (2016). The effect of five-day dosing with THCV on THC-induced cognitive, psychological and physiological effects in healthy male human volunteers: A placebo-controlled, double-blind, crossover pilot trial. Journal of Psychopharmacology, 30(2), 140–151. https://doi.org/10.1177/0269881115615104

 

Haghdoost, M., López de los Santos, Y., Brunstetter, M., Ferretti, M. L., Roberts, M., & Bonn-Miller, M. O. (2024). Using in silico molecular docking to explain differences in receptor binding behavior of HHC and THCV isomers: Revealing new binding modes. Pharmaceuticals, 17(5), Article 637. https://doi.org/10.3390/ph17050637

 

Jadoon, K. A., Ratcliffe, S. H., Barrett, D. A., Thomas, E. L., Stott, C., Bell, J. D., O’Sullivan, S. E., & Tan, G. D. (2016). Efficacy and safety of cannabidiol and tetrahydrocannabivarin on glycemic and lipid parameters in patients with type 2 diabetes: A randomized, double-blind, placebo-controlled, parallel group pilot study. Diabetes Care, 39(10), 1777–1786. https://doi.org/10.2337/dc16-0650

 

Kim, A. L., Yun, Y. J., Choi, H. W., Hong, C.-H., Shim, H. J., Lee, J. H., & Kim, Y.-C. (2022). Profiling cannabinoid contents and expression levels of corresponding biosynthetic genes in commercial cannabis (Cannabis sativa L.) cultivars. Plants, 11(22), Article 3088. https://doi.org/10.3390/plants11223088

 

Lab Effects. (2023, October 15). Durban Poison terpenes and profile. https://labeffects.com/blogs/news/durban-poison-terpenes-everything-you-need-to-know

 

Mendoza, S. (2025). The role of tetrahydrocannabivarin (THCV) in metabolic disorders: A promising cannabinoid for diabetes and weight management. AIMS Neuroscience, 12(1), 32–43. https://doi.org/10.3934/Neuroscience.2025003

 

Neuhofer, Z. T. (2026, September 28). Changes to the statutory definition of hemp and implications for agricultural policy (IF13136). Congressional Research Service. https://www.congress.gov/crs-product/IF13136

 

Olmos, R. (2024, November 19). Best THCV strains. NuggMD. https://www.nuggmd.com/blog/thcv-strains-and-weed-diet

People Science. (n.d.). Phylos case study. https://www.peoplescience.health/case-study-phylos-bioscience

 

Peters, E. N., MacNair, L., Harrison, A., Feldner, M. T., Eglit, G. M. L., Babalonis, S., Turcotte, C., & Bonn-Miller, M. O. (2023). A two-phase, dose-ranging, placebo-controlled study of the safety and preliminary test of acute effects of oral Δ⁸-tetrahydrocannabivarin in healthy participants. Cannabis and Cannabinoid Research, 8(S1), S71–S82. 

https://doi.org/10.1089/can.2023.0038

 

Riedel, G., Fadda, P., McKillop-Smith, S., Pertwee, R. G., Platt, B., & Robinson, L. (2009). Synthetic and plant-derived cannabinoid receptor antagonists show hypophagic properties in fasted and non-fasted mice. British Journal of Pharmacology, 156(7), 1154–1166. https://doi.org/10.1111/j.1476-5381.2008.00107.x

 

Turovsky, E. H., Moriarty, K., Chavarria, N., Parco, J. E., Kachadourian, R., & Brasuel, M. G. (2026). Application of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) to estimate the normal boiling points of ∆⁹-tetrahydrocannabivarin (THCV) and ∆⁹-tetrahydrocannabinol (THC). Journal of Cannabis Research, 8, Article 9. https://doi.org/10.1186/s42238-025-00373-w

 

Zamengo, L., Bettin, C., Badocco, D., Di Marco, V., Miolo, G., & Frison, G. (2019). The role of time and storage conditions on the composition of hashish and marijuana samples: A four-year study. Forensic Science International, 298, 131–137. https://doi.org/10.1016/j.forsciint.2019.02.058