Lion’s Mane (Hericium erinaceus) stimulates the production of Nerve Growth Factor (NGF), a protein essential for the growth and maintenance of neurons. Clinical studies show improved cognitive performance and reduced symptoms of mild cognitive impairment at doses of 500–1000mg daily.

Alpha-Glycerylphosphorylcholine is the most bioavailable choline precursor available. It rapidly crosses the blood-brain barrier and increases acetylcholine levels — the neurotransmitter responsible for learning, memory, and sharp focus. Studied at 300–600mg for cognitive enhancement in both healthy adults and those with cognitive decline.

Rhodiola is one of the most well-researched adaptogens in clinical literature. It activates stress-response pathways and has been shown to significantly reduce mental fatigue, improve concentration under stress, and enhance mood. Effective dose range: 150–400mg of standardized extract.

L-Theanine is a naturally occurring amino acid found in green tea. It increases alpha brain wave activity, promoting a state of relaxed alertness. When combined with caffeine (even at naturally occurring doses), it blunts the jittery side effects while extending and smoothing the stimulant effect. Clinical studies consistently use 100–200mg.

Bacopa is one of few nootropics with consistent, replicated evidence for improving working memory and information processing speed in healthy adults. It works by enhancing synaptic communication through increased dendritic branching. Effects build over 8–12 weeks of consistent use. Clinical range: 150–300mg of standardized extract (45% bacosides).

Creatine is the most studied performance supplement in existence — with over 700 peer-reviewed studies. It replenishes ATP (your cells’ primary energy currency) faster during high-intensity exercise, directly increasing strength output, power, and muscular endurance. Also increasingly studied for cognitive benefits, particularly under sleep deprivation. Standard clinical dose: 3–5g daily.