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HHC Vs. THCp: What Are The Differences

HHC Vs. THCp: What Are The Differences

, by Vivimu Blog, 5 min reading time

Hexahydrocannabinol (HHC) is a novel phytocannabinoid that recently has come to dominate the cannabinoid marketplace and its popularity has steadily risen as Delta 8 has become more contentious. HHC is known to have many similar effects as Delta 9 THC and almost as strong according to many users. HHC and its derivatives produce effects of pain relief, anti-anxiety and a feeling of well-being. While HHC is strong, some people want something that punches a little harder and thankfully cannabis provides this cannabinoid as Tetrahydrocannabiphorol (THC-P). This article will contrast HHC to THC-P which will inform you better as to what each of these are exactly.


HHC is a phytocannabinoid meaning that it is found in small amounts naturally in certain parts of Cannabis sativa plants. HHC is very similar to THC as shown in the diagram above. You will see it called hydrogenated and what this means is that hydrogen is added to the ring and the double bond represented by the second line is removed, this results in a cannabinoid very similar to THC but more stable. This stability results in that it does not degrade as easily as THC does. There will not be different Delta names for HHC because the naming convention is based on the position of the double bond, such as Delta 8 double bond is on the number 8 carbon, while Delta 9, the double bond would be located at carbon number 9. Since this double bond is removed from HHC by the addition of hydrogen, this makes HHC a different compound than THC and has an additional carbon. It should also be noted that HHC is formed in enantiomers, which are mirror images of each other in its structure. It is thought that one enantiomer does not bind at the cb1 receptor as strongly. This means does not mean HHC is not potent because it is.

Delta 9 THCP and Delta 9 THCO Molecular Structure

HHC is the successor of D8 THC, in many ways. First HHC is legal in many places where D8 THC is now illegal but please always confer with your local laws to be sure. Another reason that consumers prefer HHC is that it is noticeably stronger than D8 THC at least subjectively. Some users see it as a replacement for D9 THC while some may only agree that it is stronger than D8 THC. Even though each individual may be different in how they “feel” each cannabinoid, in a general sense HHC is closer to Delta 9 THC as opposed to Delta 8 THC. Generally HHC is available in distillate form, where at room temperature it is nearly solid and has a distinct orange tint as compare to other distillates, this is completely normal.

THC-P is the most powerful phytocannabinoid yet to be discovered naturally in cannabis and this was only a few years ago. Since then subsequent testing has found THC-P present in many non-cbd dominant cannabis strains. As shown in figure 1 main difference between THC-P and THC is the length of the carbon tail, which is shown by the squiggly line to the right of the structure. This is also the major difference between HHC and THC-P. So the only difference between THC and THC-P is two carbons added on to the tail. Although a slight chemical difference, its interactions at our endocannabinoid receptors are of great interest. This longer tail allows it to bind to the cb1 receptor much stronger than other cannabinoids. Since the addition is to this tail, all forms of THC can be made into THC-P, including D8 THC, D9 THC, D10 THC and HHC just to name a few. D8 and D9 THC-P are commonly available along with HHC-P. In these forms Delta 9 is recognized as the strongest of the three with HHC-P and D8 THC-P not far behind.

In examining evidence empirically and experimentally about THC-P, it has been shown to be substantially stronger than its shorter tailed homolog THC. There may be many claims exaggerating this strength. In an experimental study Delta 9 THC-P was estimated to bind at the endocannabinoid receptor cb1 approximately 33 times stronger than Delta 9 THC. This does not mean that THC-P is 33 times the strength of THC as some claim it to be. Empirically the results are definitely show THC-P to be significantly stronger than THC but in certain ways. For instance in most cases, THC-P is diluted typically to less than 20% of the mixture. Most users describe it as being stronger than D9 THC at this diluted amount, but most importantly is the reported length of duration. Many users feel the effects for 12-24 hours, which is substantially longer than THC. In essence THC-P is significantly stronger than THC, especially the duration. It has not been reported to be psychedelic nor is it 33 times stronger that THC but with the small percentage needed and duration truly makes it the king of the cannabinoids.

So when comparing HHC and THC-P we find they are very different forms of cannabinoids. HHC is essentially THC with added hydrogen, which stabilizes it and as well makes it different enough from THC to not be illegal in certain places. Due to their often being trace amounts of THC in HHC distillate you will not likely pass a urinalysis if you are tested, so please keep this in mind. THC-P on the other hand is THC with two additional carbons on its tail. HHC can also be made into HHC-P by the addition of two carbons as well. THC-P in nearly all studies is significantly stronger than THC at cb1. It is not a full agonist but is very strong and significantly stronger than Delta 9 THC. The other glaring difference between the two is price. The conversion to HHC is much less extensive than conversion of THC-P. The price of THC-P will allows be more unless easier and cheaper reagents are found. Although it may be pricey, you do not need it in concentrated form and it is best suited to dilution to 20% and lower with other cannabinoids. It is thought by many with experience that there is a ceiling where say above that amount any percentage may feel that same, for example 25% THCP feels similar to 50% THCP, so it is best to start lower until you find your golden ratio.


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