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L-Theanine

Core Benefits
Calm Focus Calm Focus
Stress Reduction Stress Reduction
Sleep Quality Sleep Quality
Stress & Mood Stress & Mood

L-Theanine is a naturally occurring amino acid found in green tea leaves, known for promoting a calm yet alert mental state without causing drowsiness. By increasing alpha brain wave activity and modulating neurotransmitters like GABA and serotonin, L-Theanine helps reduce stress while supporting mental clarity. In PureMind, it works synergistically to calm the nervous system, ease the transition to sleep, and sharpen focus under pressure.

Body of Contents
01. What is it? 02. Benefits 03. Further Research & Studies
L-Theanine

What it is


L-Theanine Is a Calming Amino Acid for Mental Clarity and Relaxation

L-Theanine is a non-protein amino acid most commonly found in Camellia sinensis, the tea plant. It’s widely studied for its unique ability to induce a state of “relaxed alertness”—promoting calm and reducing stress without sedating the body or dulling the mind. This effect is largely due to its influence on alpha brain wave production, a state associated with creativity, calm focus, and present-moment awareness.

L-Theanine also supports neurotransmitter balance by increasing levels of GABA, dopamine, and serotonin—chemicals involved in mood, sleep, and relaxation. These mechanisms make it ideal for those looking to reduce stress while remaining mentally sharp and emotionally centered.

SEE THE RESEARCH
Non-Sedative, But Sleep-Supportive


Unlike traditional sleep aids or calming herbs, L-Theanine does not make you drowsy. Instead, it helps calm mental chatter and reduce nervous tension—creating the right conditions for a smoother transition into sleep and deeper sleep quality.

SEE THE RESEARCH

Benefits

How L-Theanine Supports a Calm, Focused Mind

Calm Focus Without Drowsiness

Encourages alpha brain wave activity, helping to induce a relaxed-yet-alert mental state that supports clear thinking and creative flow.

Stress and Anxiety Regulation

Modulates neurotransmitters like GABA and serotonin, helping reduce tension, nervous energy, and reactivity under pressure.

Mood Stability

Increases dopamine levels, contributing to emotional balance, resilience, and a sense of well-being throughout the day.

Sleep Quality Support

Eases the transition into sleep by reducing nighttime overthinking and promoting a calmer pre-sleep state—without the hangover effect of sedatives.

Cognitive Performance Under Pressure

Helps reduce the effects of stress on working memory and attention, making it ideal for those juggling demanding schedules or mental workloads.

Neurotransmitter Support

Supports the natural production and balance of calming and mood-stabilizing neurotransmitters—enhancing long-term nervous system function.

Why It’s in PureMind

L-Theanine is a core ingredient in PureMind for its unique ability to promote calm focus, reduce stress, and support quality sleep—all without slowing you down. It’s ideal for high performers who need to stay mentally clear during the day and wind down gently at night. In combination with magnesium, adaptogens, and detoxifying agents, L-Theanine helps create the calm clarity PureMind is known for.
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Further Research & Studies

Further Research & Studies

Clinical Insight into L-Theanine’s Brain-Calming Effects

Further Research & Studies

Clinical Insight into L-Theanine’s Brain-Calming Effects

National Library of Medicine

Alpha Brain Wave Stimulation

L-Theanine has been shown to significantly increase alpha wave activity in the brain, promoting a calm yet alert state of mind.

Read Study

National Library of Medicine

Stress & Anxiety Reduction

Human trials show L-Theanine can reduce subjective stress levels and modulate cortisol responses during mental stress.

Read Study

National Library of Medicine

Sleep Quality Without Sedation

Research suggests L-Theanine can improve sleep latency and quality without sedation, especially when paired with other calming nutrients.

Read Study

Benefits

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