Modafinil is a wakefulness-promoting agent with proven nootropic properties. Its effectiveness has been well-documented in dozens of studies over decades of research, and it's often used off-label by healthy individuals who want to enhance their mental performance.
Adrafinil is a wakefulness-promoting drug that appears to have impressive nootropic properties. Used responsibly, it may be an effective tool for supporting lengthy mentally demanding tasks.
Phenylpiracetam is a powerful racetam nootropic, developed in Russia for use by cosmonauts on long space missions. It's a potent stimulant that may also improve mood, memory, cognition, and even athletic performance.