Phenylethylamine

Phenylethylamine (PEA) is used as an occasional stimulant-like nootropic, typically at 500 mg, sometimes repeated with another 500 mg for especially demanding work. It’s taken to increase dopamine signaling and sharpen mental acuity, with some people using it as a substitute for L-tyrosine or stacking it with alpha-GPC, L-tyrosine, and caffeine for a stronger focus effect.