The active Methyl PEA isomer, R-beta Methylphenylehtylamine – found botanically in nature and found also in chocolate, is a simpler form called PEA has been called the love compound.

Small chemicals called methyl groups bind to the DNA, helping to determine which genes become active.

Methyl salicylate and camphor also may be poisonous when applied to a large area of the skin, or when combined with heat to increase absorption of the active ingredients.