Nootropics are substances that support cognitive function — memory, focus, learning, creativity or motivation. They range from caffeine to prescription medications to herbal supplements like {BRAND}.
Stimulant (caffeine, modafinil), racetam (piracetam), herbal (Bacopa, Rhodiola, Ginkgo), amino acid (L-Tyrosine, L-Theanine), cholinergic (Huperzine A).