Phenylethylamine (or "PEA") usually doesn't make it into the brain (i.e. doesn't pass through the brain-blood barrier), however, in combination with an MAOI such as hordenine, it causes euphoria, acts as an aphrodisiac and heightens the intimate (e.g. massage) and sexual sensitivity and pleasure. Many people compare the effects to MDMA. However, unlike this chemical, it is not know to be neurotoxic and offers another advantage: the effects end approx. 2 hours after ingesting and no one I know has every experienced a hangover or other side effects.
In order to try the experience, the hordenine must be taken approx. 20 minutes before taking the PEA to stop the PEA from being destroyed before it even reaches the brain. Therefore, by taking the hordenine first with a bit of lemon juice (the acidity helps the body absorb it and, it allows almost all of PEA to reach the brain. After then initial 20 minutes have gone by, the PEA is then consumed and within about 15-20 minutes the euphoria and heightened sensitivity begins and continues for just under 2 hours. The recommend starting dosages are 15mg of hordenine (6-7 microscopes) and 200mg PEA (about two 1/8 teaspoons).. This low dose is unlikely to cause Euphoria in everyone. Indeed I have read that these dosages a even tripled to provide more intense results. The cheapest source I've found so far with good turnaround (2 day shipping available at a nominal amount) is at Liftmode.com.