MM - L-Theanine 200mg x 120 capsules


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Food supplements should not be used as a substitute for a balanced and varied diet.
L-theanine is a naturally occurring amino acid found primarily in green tea leaves (Camellia sinensis). Suntheanine® is a patented, high-purity form of L-theanine produced through a fermentation process, which ensures consistent quality and bioavailability. Suntheanine® specifically is standardised to 100% pure L-theanine (the active isomer), which may offer more reliable effects compared to lower-purity extracts.
Calming and Non-Sedating
L-theanine works by influencing brain chemicals like GABA (which promotes relaxation), serotonin (for mood balance), and dopamine (for focus and pleasure). It crosses the blood-brain barrier quickly, typically within 30-60 minutes, to modulate these neurotransmitters without the jittery side effects of stimulants like caffeine.
Synergistic with Caffeine
Often paired with caffeine (as in green tea), it smooths out caffeine's stimulating effects, reducing anxiety while enhancing alertness. Alone, at 200 mg, it promotes alpha brain waves associated with relaxed but attentive states.
Antioxidant and Neuroprotective
It may help protect brain cells from oxidative stress and inflammation, supporting long-term brain health. This is linked to its ability to regulate glutamate (an excitatory neurotransmitter) and reduce overactivity in stress-related brain areas.
Reduces Stress and Anxiety: Promotes a healthy stress response and an even mood.
Improves Sleep Quality: While not a sedative, it shortens time to fall asleep and enhances deep (NREM) sleep stages.
Boosts Cognitive Function: Enhances attention, focus, and executive function (like planning and verbal fluency).
Supports Mental Health: Emerging evidence suggests it eases depressive symptoms and may aid conditions like ADHD or generalized anxiety by balancing brain chemicals.
It may lower blood pressure during stress, improve pain sensitivity, and offer neuroprotective effects against age-related decline.
Each capsule provides 200mg of L-Theanine as Suntheanine®.
Nutrition Information
Supplement Facts
| Amount Per Serving: |
% NRV* | |
|---|---|---|
| L-Theanine (Suntheanine®) | 200 mg | † |
|
Glycine
|
200 mg | † |
† NRV not established.
Ingredients: Glycine, L-Theanine, magnesium stearate (E572), capsule shell: hydroxypropyl methylcellulose (E464).








