Smilz CBD Gummies

Here we look at the claims for Smilz CBD Gummies.

Version: 2.0 Last updated: April 2023 To be reviewed: November 2025

Treatment details

Illustration of a droplet with a leaf in it.


CBD dietary supplement



Evidence of harm



Evidence that it is not effective



The makers claim

Smilz CBD gummies help “in solving all physical and mental health issues”[1].

What is the treatment?

Smilz CBD Gummies are chewable gummie sweets[1].

Each gummie “mainly contains Hemp Plant Extract, Olive Oil, Lavender Oil, Garcinia Cambogia, Green Tea Extract, and more”[1].

What are the downsides of this treatment?

Animal models suggest that cannabinoids may promote the development of tinnitus[2] [3].

Users of marijuana are more likely to experience tinnitus[4].

The US Food and Drug Administration considers Garcinia cambogia to be unsafe[5].

Green tea can be harmful in large doses[6].


Has there been research into this treatment?

There are 10 relevant papers found with keywords tinnitus + cannabinoid in PubMed database.

What does the research say?

To date, there have been no systematic studies of the effects of cannabinoids on tinnitus in humans[7].

It is feasible that different cannabinoids may have different effects on tinnitus[3].

Very little research has been done, but the evidence so far suggests that cannabinoids may exacerbate tinnitus.

Licences for the use of CBD oil or hemp oil as a medicine have not yet been granted.

“Dietary supplements should not be recommended to treat tinnitus.[8]”

Tinnitus UK


Products containing CBD oil are legal in the UK, providing the content of a psychoactive component of cannabis (THC, tetrahydrocannabinol) is 0.2% or below.

All online references accessed 16 November 2022 unless noted.

1. SF Weekly. Smilz CBD Gummies
Review – [Website Scam 2022]
Ingredients Side Effects, Tinnitus Fact
Check & Where To Buy?.

2. Zheng Y, Reid P, Smith PF. Cannabinoid CB1 receptor agonists do not decrease, but may increase acoustic trauma-induced tinnitus in rats. Frontiers in Neurology (2015).

3. Narwani V, Bourdillon A, Nalamada K, Manes RP, Hildrew DM. Does cannabis alleviate tinnitus? A review of the current literature. Laryngoscope Investigative Otolaryngology. (2020)
Oct 30;5(6):1147-1155. doi: 10.1002/

4. Qian ZJ, Alyono JC. An Association between marijuana use and tinnitus. American Journal of Otolaryngology.
(2020); 41(1): 102314. doi:10.1016/j.

5. Web MD LLC. Garcinia Cambogia: Safe for Weight Loss?

6. The Drugsite Trust. Green tea.

7. Smith PF, Zheng Y. Cannabinoids, cannabinoid receptors and tinnitus. Hearing Research. (2016); 332 210-216.

8. Coelho C, Tyler R et al. Survey on the Effectiveness of Dietary Supplements to Treat Tinnitus. American Journal of Audiology. (2016) 25(3): 184-205