What is HHC?
HHC is a THC relative long known to science, but until recently not often discussed by cannabis users. HHC is a minor cannabinoid; it occurs naturally in cannabis, but in amounts too small to make extraction cost-effective. Since commercial production of HHC is just getting off the ground, it’s still not widely known.
Most cannabinoids can be converted to other cannabinoids by altering the chemistry of the molecules. Like delta 8 THC and delta 10 THC, commercial HHC is made from hemp-derived CBD in a lab through chemical processes. HHC has one major legal advantage over delta 8 and delta 10: it isn’t called THC.
How is HHC produced?
Hydrogenation modifies the structure of delta 9 THC by replacing a double bond with two hydrogen atoms, which changes its molecular weight and also makes it more stable. According to Mark Scialdone, a chemist and BR Brands Chief Science Officer, hydrogenation improves “stability and resistance to thermo-oxidative breakdown”—which means HHC has a longer shelf life and is less prone to damage caused by UV light and heat.
Does HHC get you high? Does it have side effects?
Manufacturers haven’t yet figured out a cost-effective way to separate high-potency HHC from its low-potency twin, so commercial HHC—which is a mix of the two forms—may be something of a crapshoot for the buyer. But HHC does have noticeable effects. Reports from users generally describe the HHC high as being somewhere between delta 8 and delta 9 THC.
Pretty much everything we know about HHC’s effects and side effects is anecdotal. That said, users report the same set of side effects familiar to delta 9 THC users: anxiety and paranoia, dry mouth, dry and red eyes, hunger, and insomnia.
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Will HHC show up in a drug test?
But that hasn’t been studied and isn’t certain. So far, no one knows for sure that HHC won’t leave evidence of use in your blood, urine or hair. If your employer tests for drug use, we suggest you not risk your job by using HHC.
Does HHC have medical benefits?
Is HHC legal and will it stay legal?
Even though HHC is found naturally in the cannabis plant, commercial HHC is made by hydrogenating hemp-derived cannabinoids under pressure with a catalyst like palladium. Scientists at the National Cannabis Industry Association call the result a “semi-synthetic” cannabis compound.
In May 2022, the 9th U.S. Circuit Court of Appeals confirmed that delta 8 THC was legal under the Farm Bill hemp definition, and that all other compounds and derivatives of hemp are also legal, as long as they don’t contain more than the legal maximum 0.3 percent delta 9 THC. That apparently makes HHC a legal hemp product, and offers protection for manufacturers and sellers of HHC (and delta 8 and delta 10 THC, and THCP), although some attorneys note that other federal courts could reach different conclusions.
However, HHC could still be banned by individual states. This is likely if HHC becomes popular enough that it threatens sales in the legal cannabis market, as we’ve seen happen with delta 8 THC.
Where can HHC be found?
A quick Google search brought up about a dozen online retailers offering a variety of HHC products. Most sellers offer vape carts filled with HHC oil, and many have gummies. Less common but definitely available are disposable HHC vapes, tinctures for oral consumption, and concentrates for dabbing. At least one company sells “HHC flower”—which is hemp flower coated or infused with HHC.
If HHC remains legally viable, and especially if it becomes less expensive to manufacture high-potency HHC, this promising cannabinoid will become more available in the diverse cannabis marketplace.
Jim McDonald
Vaping for: 13 years
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Favorite flavors: RY4-style tobaccos, fruits
Expertise in: Political and legal challenges, tobacco control haters, moral panics
Jim McDonald
Smokers created vaping without help from the tobacco industry or anti-smoking crusaders, and I believe vapers have the right to continue innovating to help themselves. My goal is to provide clear, honest information about the challenges vaping faces from lawmakers, regulators, and brokers of disinformation. I’m a member of the CASAA board, but my opinions aren’t necessarily CASAA’s, and vice versa. You can find me on Twitter @whycherrywhy
