# Entourage effect

> The entourage effect is the hypothesis that cannabis compounds, especially cannabinoids and terpenes together, produce effects different from any single compound; human evidence remains contested.

- Canonical: https://genetixbay.com/knowledge/glossary/entourage-effect.html
- Also written: entourage, ensemble effect, whole-plant synergy, full-spectrum effect, cannabis synergy
- Glossary category: Cannabinoids and terpenes · Evidence: Contested
- Status: Draft: awaiting expert review · Updated: 2026-10-31
- Licence: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/), attribute "GenetixBay cannabis glossary"

The entourage effect is a hypothesis that the many compounds in cannabis interact so that the whole plant acts differently from purified [THC](https://genetixbay.com/knowledge/glossary/thc.md) or [CBD](https://genetixbay.com/knowledge/glossary/cbd.md). The term comes from endocannabinoid research by Ben-Shabat, Mechoulam and colleagues in 1998; Russo (2011) extended it to cannabinoid-terpene interactions. Critics such as Cogan (2020) argue that much of it is marketing, and controlled human tests of specific terpene-cannabinoid combinations have so far been limited and mixed.

## In practice

The phrase is used to sell "full-spectrum" products and to argue against isolates and [distillates](https://genetixbay.com/knowledge/glossary/distillate.md). For growers, there is a firmer, separate point: people consistently report that aroma matters to their experience, and one survey study (Plumb et al. 2022) found that aroma predicted reported subjective effects better than THC percentage. That supports caring about [terpenes](https://genetixbay.com/knowledge/glossary/terpene.md) and [VSCs](https://genetixbay.com/knowledge/glossary/volatile-sulfur-compounds.md) without endorsing specific synergy claims. GenetixBay makes no medical claims; effects are only reported.

## Don't confuse with

- **Terpene profile**: a measurement; the entourage effect is a hypothesis about what the measurement means.
- **Full-spectrum**: a product label, not a tested outcome.

## Myth check

Evidence: Contested. Claims that a particular terpene "steers" effects are not established. See [Mythbusters](https://genetixbay.com/knowledge/mythbusters.md).

## Related terms

[Terpene](https://genetixbay.com/knowledge/glossary/terpene.md), [Cannabinoid](https://genetixbay.com/knowledge/glossary/cannabinoid.md), [Terpene profile](https://genetixbay.com/knowledge/glossary/terpene-profile.md), [Isolate](https://genetixbay.com/knowledge/glossary/isolate.md), [Distillate](https://genetixbay.com/knowledge/glossary/distillate.md)

## Read more

- [Why everything tastes the same: the evidence that commercial cannabis is converging](https://genetixbay.com/knowledge/genetics-history/why-everything-tastes-the-same.md)

## Sources

1. Russo EB. 2011. Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. British Journal of Pharmacology 163(7):1344-1364. https://doi.org/10.1111/j.1476-5381.2011.01238.x
2. Cogan PS. 2020. The 'entourage effect' or 'hodge-podge hashish': the questionable rebranding, marketing, and expectations of cannabis polypharmacy. Expert Review of Clinical Pharmacology 13(8):835-845.
3. Plumb J, Demirel S, Sackett J, Russo EB, Wilson-Poe AR. 2022. The nose knows: aroma, but not THC mediates the subjective effects of smoked and vaporized cannabis flower. Psychoactives 1(2):70-86. https://doi.org/10.3390/psychoactives1020008