HHC-P is a hydrogenated form of THC-P. It is similar to HHC, which is a hydrogenated form of THC, but it has two extra carbon atoms in its alkane chain. HHC-P can exist in both 9R and 9S configurations, depending on the methyl group attached to the 9 carbon. Previous studies have shown that increasing the length of the alkane chain in THC-P increases its binding to cannabinoid receptors. Therefore, it is reasonable to assume that the same is true for HHC-P. According to early reviews, HHC-P is reported to be more potent than both HHC and THC-P.