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L-Theanine

An amino acid naturally found in tea leaves, particularly in green and black tea

Stress & Anxiety

70

XP

Reduces stress and anxiety levels, promoting a calmer mental state without causing sedation. 1, 2, 3

Focus & Alertness

30

XP

Leads to small improvements in focus and attention, particularly in combination with caffeine. 4

Sleep Quality

30

XP

Improves sleep quality slightly by promoting relaxation, without acting as a sedative. 5, 6

XP combines how reliable the research is with how much difference it usually makes

Reliable Impact

Limited Impact

Moderate Impact

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L-Theanine

Quality Score

4.5

 / 5

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Amazon

Authority

Personalities who have claimed to use this supplement in the past

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Andrew Huberman

Neuroscientist

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