PEA acts via multiple mechanisms PEA acts via multiple mechanisms either directly to activate PPAR-α and GPR55 or indirectly through the inhibition of FAAH, which increases endogenous levels of anandamide (AEA) and 2-arachidonoyl-glycerol (2-AG). These endocannabinoids directly activate CB2 (or CB1) receptors and TRPV1 channels (entourage effect). PEA may also activate TRPV1 channels via PPAR-α.