We currently don't know much about the long-term side effects of HHC, but we do know that it has immediate side effects similar to those of Delta-8 and Delta-9 THC. These include dry mouth, red eyes, increased appetite, and in some cases, anxiety and paranoia. You may also experience a slight decrease in blood pressure followed by a slight increase in heart rate, leading to dizziness and lightheadedness. HHC is the most stable form of THC, as it is highly resistant to oxidation, heat, and UV light.
However, it is not listed in the Controlled Substances Act (CSA) of the United States, but it could be considered a synthetic substance under the Federal Analogs Act (FAA). If this is the case, using, possessing, selling, distributing, and producing HHC products could be illegal. HHC has between 70 and 80% of the concentration of THC, making it more potent than Delta-8 and Delta-10. It is also very different from CBN despite being derived from THC. The main difference between HHC and Delta 8 is that HHC is less potent and doesn't have the same psychoactive effects as Delta 8.Preliminary research suggests that HHC is not metabolized to 11-hydroxy-THC, which can cause a positive result on drug tests.
HHC has two additional hydrogenated carbons and lacks an ester atom and a carbon bond compared to THC. These molecular changes make HHC much more stable than THC with greater resistance to heat and UV rays. Preliminary research indicates that HHC has a comparable safety profile to that of THC, with similar side effects at high doses. At the moment, there are no laws prohibiting HHC in any state.
However, most people believe that states with Delta 8 boundaries would impose similar prohibitions on HHC in court.