The Focus Problem

Cognitive performance is the number one concern among working professionals in my clinic.

Tier 1: Strong Clinical Evidence

Caffeine + L-Theanine: The most reliably effective nootropic combination. A 2025 crossover study showed L-theanine and caffeine improved selective attention even in sleep-deprived adults.

Creatine Monohydrate: A 2024 meta-analysis found creatine improved cognitive function in memory, attention, and information processing speed. 3-5 grams daily.

Omega-3 (EPA/DHA): DHA constitutes 40% of brain polyunsaturated fatty acids. Target omega-3 index > 8%.

Tier 2: Moderate Evidence

Citicoline: Improves attention, memory, and executive function with 250-500 mg daily.

Bacopa Monnieri: Meta-analysis of 9 RCTs showed improvements in attention, processing, and working memory. Effects take 8-12 weeks.

Lion's Mane: Stimulates nerve growth factor (NGF). RCT showed cognitive improvement in adults over 50 at 3,200 mg daily.

Tier 3: Insufficient Evidence

Racetams, alpha-GPC (stroke risk concern), and prescription stimulants (ethical and safety concerns).

Foundations Trump All Supplements

Sleep, exercise, blood glucose stability, hydration, and stress management matter more than any nootropic.

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At Genoryx, we assess cognitive performance with neurocognitive testing and brain-relevant biomarkers. Book a consultation and optimise the organ that runs your career.