L-THEANINE + Absorption Aids for better potency!
60 Capsules per bottle, every capsule includes:
- L-theanine (200mg);
- Panax ginseng (50mg);
- Black pepper extract (98% piperine)(10mg).
- Increasing mental focus and clarity;
- Staying alert while remaining relaxed;
- Stacking with coffee to reduce caffeine jitters and improve calm focus;
As a dietary supplement, take 1 – 4 capsules daily as needed.
For optimal function take separate of food and sources of amino acids. L-theanine is fast-acting, with clinically proven effects within 45 minutes of ingestion.
L-Theanine in Tea
Ever wondered why sipping a cup of tea provides such a smooth uplifting feel without the hassle of jitters? That’s the L-theanine! Tea leaves contain a proportionally high amount of this sweet little amino acid, easily enough to handle the small amount of caffeine pumping its way in.
The presence of L-theanine in Tea leaves was actually discovered by Japanese researchers in 1949. Interestingly, when they correlated tea's that were considered "high quality", these were also the tea's that had a high L-theanine content!
But with our modern day workplace, coffee has quickly established itself as the beverage of choice for its greater caffeine content. Coffee which, unfortunately, lacks the supportive L-theanine component.
More on L-Theanine itself
L-theanine crosses the blood-brain barrier, and has the ability to modulate inhibitory neurotransmitters, selective serotonin, and dopamine to bring about anxiolytic and calming effects. L-theanine can also improve cognition and selective attention, perhaps due to changes in alpha brain wave activity. Finally, its ability to selectively bind to glutamate receptors may confer neuroprotective effects as well.
In addition to promoting relaxation, L-theanine has been shown to stabilize cognitive function affected by stress hormones. More specifically, L-theanine decreases levels of corticosterone, which when elevated can inhibit spatial learning and memory formation. Other researchers have shown that, in people with anxiety, L-theanine improved attention span and reaction time. Taken with caffeine, L-theanine improved visual information processing and accuracy when moving between tasks.
Given its ability to encourage attention and focus, it may come as a surprise that L-theanine has also been found to improve time to sleep as well as quality of sleep. Instead of acting as a sedative, L-theanine works to promote better rest by reducing anxiety and promoting relaxation.
Q: Will I build a tolerance to L-Theanine?
Not at all! L-theanine is not habit-forming and it does not lead to tolerance and dependence even when used over long periods of time.
Q: What about adverse reactions?
L-Theanine is generally well tolerated, and there are no published reports of serious adverse side effects or interactions with other natural products or conventional prescription medications.
If you're keen for some further reading on L-theanine, below are a couple research articles we frequently recommend at VitaKea.
- 200 mg of Zen | L-Theanine Boosts Alpha Waves, Promotes Alert Relaxation
- L-theanine, a natural constituent in tea, and its effect on mental state