2-phenylethylamine is an organic compound that consists of a phenyl group attached to an ethylamine chain. It is a colorless liquid at room temperature and has a faint, pleasant odor. This compound is naturally found in various foods, such as chocolate, and is known for its role as a neurotransmitter in the human brain, influencing mood and emotional responses. In addition to its natural occurrence, 2-phenylethylamine is used in the production of certain pharmaceuticals and as a dietary supplement. It is often marketed for its potential effects on mood enhancement and cognitive function. However, more research is needed to fully understand its benefits and safety.