Mental alertness
Supplements studied for mental alertness.
Overview
Black Tea has high-strength evidence from six studies for maintaining alertness and focus during the day, mainly through its caffeine content, which boosts attention especially after poor sleep. Caffeine from coffee or supplements also improves wakefulness across 32 studies.
However, caffeine does not fully restore rested performance and most people still perform below well-rested levels. The heatmap and evidence reviews below provide further detail.
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Relevant supplements heatmap
Relevant supplements sorted by DEX Score.
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SupplementDEX Database
2 supplements for rated at least stars. All purchase bands. No minimum star filter.
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Evidence visualised
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Visual summaries of supplement evidence ranked by condition.
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