L-Tyrosine is an amino acid that, when supplemented, may improve mood and memory, enhance cognitive abilities, increase focus, and reduce the adverse effects of stress. Also available as N-Acetyl L-Tyrosine (NALT), a more bioavailable form.
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.
Pramiracetam is a drug that may enhance memory and improve overall cognition. Its unique properties make it a potentially powerful brain performance optimizer on its own or in a nootropic stack.