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HHC (Hexahydrocannabinol)

Also known as: Hexahydrocannabinol, Hydrogenated THC

Definition

HHC (hexahydrocannabinol) is an intoxicating cannabinoid made by adding hydrogen to THC, usually in a lab from hemp-derived cannabinoids, and its legal status in the United States is contested and varies by state.

HHC (Hexahydrocannabinol) shown alongside related glossary terms: Delta-8 THC, THC (Tetrahydrocannabinol).

HHC was first reported in 1940 by the chemist Roger Adams. It is a close chemical cousin of THC: the process of hydrogenation adds hydrogen atoms to the THC molecule, which changes its shape. Traces of HHC have been reported in the cannabis plant, but the HHC sold in shops is not squeezed from the plant. It is made semi-synthetically, typically by converting hemp CBD or THC isomers in a lab. That is why we do not file it with the plant's own cannabinoids like CBD or CBG.

HHC is psychoactive, and it is generally described as similar to THC and somewhat weaker. We do not have the human research to say more. Because it is made by a chemical conversion step, the finished product is only as clean as the lab that made it, which is why a batch COA matters even more for converted cannabinoids than for plain hemp extract. Legal status is the other open question. As of the October 2026 version of the Wikipedia article on HHC, its US status is listed as under litigation, after hemp companies challenged a federal claim that it is banned. Several states ban synthetic or converted cannabinoids outright, and many other countries have banned HHC.

None of our four products contain HHC. Our oils and salve stick are hemp extract in organic coconut-derived MCT oil, and the THC-Free Broad Spectrum drops have THC removed, with the COA reading ND or below the limit of quantification. If you are comparing CBD with HHC, our side-by-side page lays out the differences. For the rules where you live, start with our state-by-state guide.

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