L-Theanine 250mg | Relaxation Without Drowsiness | Stress Support | Cognitive Balance | 300 Vegan Capsules

Each capsule contains 250mg of L-Theanine from green tea leaf (Camellia sinensis), a naturally occurring non-protein amino acid found almost exclusively in the tea plant. L-Theanine is the compound responsible for the calm, focused quality of green tea that distinguishes it from other caffeinated beverages a state of relaxed alertness that tea drinkers have valued for centuries. At 250mg per capsule, this formula delivers a high potency dose in a single capsule, equivalent to the L-Theanine content of approximately 5 to 12 cups of green tea. Helps to temporarily promote relaxation without drowsiness. Helps to reduce stress. Helps to support cognitive function. Health Canada approved (NPN 80068090). 100% vegan, non-GMO, gluten-free, and soy-free. Made in Canada in a quality controlled facility. 300 vegan capsules.

Key Benefits

• Helps to temporarily promote relaxation without drowsiness
• Helps to reduce stress
• Helps to support cognitive function
• 250mg L-Theanine per capsule from green tea leaf
• Promotes alpha brain wave activity the wave pattern of relaxed alertness
• Relaxation without sedation: calm and alert, not drowsy
• High-potency: equivalent to 5 to 12 cups of green tea L-Theanine per capsule
• 300 vegan capsules exceptional supply
• Health Canada approved (NPN 80068090)
• Made in Canada in a quality controlled facility
• 100% vegan and non-GMO
• Gluten-free, dairy-free, soy-free

What Is L-Theanine?

L-Theanine (gamma-glutamylethylamide) is a non protein amino acid found almost exclusively in the leaves of Camellia sinensis the tea plant from which green tea, black tea, white tea, and oolong tea are all derived. It is one of the primary bioactive compounds in green tea alongside caffeine and the catechin polyphenols, and is responsible for the distinctive calm, focused quality that green tea produces compared to other caffeinated beverages.

Natural Occurrence: A standard cup of green tea contains approximately 20 to 50mg of L-Theanine, depending on the tea variety, growing conditions, and brewing method. Matcha, which uses the whole ground tea leaf, contains higher concentrations. At 250mg per capsule, one capsule of this formula provides the L-Theanine equivalent of approximately 5 to 12 cups of brewed green tea without the caffeine, tannins, or liquid volume.

Structural Chemistry: L-Theanine is structurally similar to the amino acids glutamate and glutamine, differing from glutamine by the substitution of an ethylamide group for the amide group. This structural similarity to glutamate is central to L-Theanine's neurological mechanism of action, as glutamate is the primary excitatory neurotransmitter in the brain.

Blood-Brain Barrier: L-Theanine crosses the blood brain barrier efficiently after oral ingestion, reaching peak plasma concentrations within approximately 30 to 60 minutes of consumption. Its ability to cross the blood brain barrier is essential for its neurological effects.

The Alpha Wave Mechanism: Relaxed Alertness Without Drowsiness

The most consistently documented neurological effect of L-Theanine is its ability to increase alpha brain wave activity. Understanding this mechanism explains why L-Theanine produces relaxation without drowsiness a combination that is pharmacologically unusual and clinically significant.

Brain Wave Frequencies: The brain produces electrical activity at different frequencies depending on mental state. Delta waves (0.5 to 4 Hz) predominate during deep sleep. Theta waves (4 to 8 Hz) occur during light sleep and deep relaxation. Alpha waves (8 to 13 Hz) are associated with a state of relaxed, wakeful alertness calm but mentally present. Beta waves (13 to 30 Hz) predominate during active thinking, problem solving, and stress. Gamma waves (30 Hz and above) are associated with high level cognitive processing.

L-Theanine and Alpha Waves: Multiple EEG (electroencephalography) studies have demonstrated that L-Theanine supplementation increases alpha wave activity in the brain, particularly in the occipital and parietal regions, within 30 to 60 minutes of ingestion. Alpha waves are the brain wave pattern associated with relaxed alertness the mental state of being calm, focused, and present without tension or drowsiness. This is the neurological basis for L-Theanine's ability to promote relaxation without causing sedation.

Why This Is Unusual: Most compounds that promote relaxation do so by increasing inhibitory neurotransmission broadly, which tends to produce sedation alongside relaxation. L-Theanine's alpha wave promotion produces a qualitatively different state calm without drowsiness that is appropriate for daytime use, work, study, and situations requiring both mental clarity and reduced stress.

L-Theanine's Neurochemical Mechanisms

L-Theanine influences brain chemistry through several complementary mechanisms:

Glutamate Receptor Modulation: Due to its structural similarity to glutamate, L-Theanine acts as a partial agonist at NMDA (N-methyl-D-aspartate) glutamate receptors and inhibits glutamate uptake at AMPA and kainate receptors. Glutamate is the primary excitatory neurotransmitter in the brain, and excessive glutamate activity is associated with neuronal excitation and stress responses. By modulating glutamate receptor activity, L-Theanine helps moderate excitatory neurotransmission without fully blocking it.

GABA Support: L-Theanine increases levels of GABA (gamma-aminobutyric acid), the primary inhibitory neurotransmitter in the brain. GABA reduces neuronal excitability and is associated with feelings of calm and relaxation. L-Theanine's ability to support GABA activity contributes to its relaxation-promoting effects.

Dopamine Modulation: L-Theanine has been shown to increase dopamine levels in certain brain regions. Dopamine is involved in motivation, reward, and mood regulation. This dopaminergic effect may contribute to L-Theanine's mood-supporting properties and its ability to maintain a positive, focused mental state under stress.

Serotonin: L-Theanine may also influence serotonin levels in the brain, contributing to its mood-balancing effects. Serotonin is involved in mood regulation, emotional balance, and the stress response.

250mg: A High-Potency Dose

Most L-Theanine supplements on the market contain 100mg to 200mg per capsule. This formula delivers 250mg per capsule at the upper end of commonly available supplemental doses and consistent with the higher doses used in clinical research on L-Theanine's stress and cognitive effects. The 250mg dose provides a meaningful, high-potency serving in a single capsule without requiring multiple capsules per dose.

300 Capsules: Exceptional Supply

At 300 capsules per bottle, this formula provides an exceptional supply compared to the 60 to 90 capsule bottles typical of most L-Theanine supplements. At one capsule per day, the bottle provides a 300-day supply approximately 10 months. This makes it one of the most cost effective L-Theanine supplements available per milligram of L-Theanine delivered.

Understanding the Dosage

L-Theanine (from green tea leaf): 250mg per capsule
Suggested Use: As directed by a healthcare practitioner
Total Capsules: 300
Non-Medicinal Ingredients: Microcrystalline cellulose, hypromellose (capsule shell)

Consult your healthcare provider to determine the appropriate dosage and timing for your individual needs. L-Theanine can be taken with or without food and is appropriate for daytime use given its non sedating relaxation profile.

Who May Consider This Product

• Individuals seeking relaxation support without drowsiness or sedation
• Those wanting stress support that is compatible with daytime use and mental clarity
• People seeking cognitive function support alongside stress relief
• Those wanting the neurological benefits of green tea L-Theanine in a concentrated, caffeine-free capsule
• Individuals interested in alpha brain wave support for relaxed alertness
• Those wanting a large supply (300 capsules) for consistent long-term daily use
• Vegans and vegetarians
• Those seeking a Health Canada approved, Canadian made L-Theanine supplement

Quality and Purity

• Health Canada approved (NPN 80068090)
• 250mg L-Theanine per capsule from green tea leaf (Camellia sinensis)
• Vegan capsules (hypromellose)
• 300 capsules
• Made in Canada in a quality-controlled facility
• 100% vegan and non-GMO
• Gluten-free, dairy-free, soy-free
• No caffeine

Storage

Store in a cool, dry place away from direct sunlight. Keep bottle tightly sealed.

Safety Information

Consult a healthcare professional before use if you are pregnant or breastfeeding, taking medications (particularly medications for blood pressure or stimulant medications), or have a medical condition. L-Theanine may have mild blood pressure lowering effects; individuals taking antihypertensive medications should consult a healthcare provider before use. This product is not intended to diagnose, treat, cure, or prevent any disease.

Keep out of reach of children.

This product is approved by Health Canada (NPN 80068090).

About L-Theanine 250mg | Relaxation Without Drowsiness | From Green Tea Leaf

L-Theanine is the naturally occurring amino acid in green tea responsible for the calm, focused quality that distinguishes tea from other caffeinated beverages. Its primary neurological mechanism is the promotion of alpha brain wave activity the wave pattern of relaxed alertness producing relaxation without sedation through modulation of glutamate receptors, GABA support, and dopamine activity. At 250mg per capsule from green tea leaf, this high potency formula delivers the L-Theanine equivalent of 5 to 12 cups of green tea in a single caffeine free capsule. With 300 capsules per bottle, it provides an exceptional supply for consistent daily use. Health Canada approved (NPN 80068090) for helping to temporarily promote relaxation without drowsiness, helping to reduce stress, and helping to support cognitive function. 100% vegan and made in Canada in a quality controlled facility.