Supplements that actually support focus

Most "nootropic" marketing is noise. These are the compounds with replicated research for focus, working memory, and mental endurance — scoped to what's safe to use daily without building tolerance.

The short list

Frequently asked

Do nootropics actually work?
A small subset do. Caffeine + l-theanine is the best-documented acute stack. For chronic focus support, omega-3 and creatine have the strongest evidence, particularly under sleep deprivation.
Can I stack caffeine and l-theanine?
Yes — l-theanine (100–200 mg) blunts caffeine's jitter and late-day crash without reducing the focus effect. This is one of the most replicated nootropic combinations.
What's the most evidence-backed focus supplement?
For acute focus: caffeine + l-theanine. For long-term brain health and focus under stress: omega-3 (EPA/DHA). Creatine has surprisingly strong data for cognitive performance when sleep-deprived.

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