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Douglas Labs L-Theanine (100mg, 60 VCaps)
L-Theanine-Reduce feelings of stress and increase relaxation
Amino acid may calm you in 30 minutes or less without drowsiness


 
60 100mg Vegetarian Capsules
Suggested Use: 1 Capsule daily or as directed by your healthcare professional.
L-theanine is most effective in the range of 50-200 mg, with the effect being felt within 30 minutes and lasting for 8-10 hours.
List Price: $22.00
Sale Price: $18.95
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Description Ingredients
 
Destress with L-theanine: this amino acid may calm you
in 30 minutes or less without drowsiness
 

As it is digested in your small intestine, L-theanine stimulates your brain's production of alpha waves, which make you feel relaxed but alert and not drowsy. L-theanine also helps you stay relaxed by stimulating your body to produce other calming amino acids, such as dopamine, GABA, and tryptophan.
 Anxiety
You may benefit from L-Theanine supplementation  if:

  • You often feel anxious for no reason
  • You sometimes feel “free-floating” anxiety 
  • You frequently feel “edgy,” and it’s difficult to relax
  • You often feel a “knot” in your stomach
  • Falling asleep is sometimes difficult
  • It’s hard to turn your mind off when you want to relax
  • You occasionally experience feelings of panic for no reason
  • You often use alcohol or other sedatives to calm down
I just can't turn my mind off and relax...

If your mind can’t relax, neither can your body—no matter how exhausted you feel.  So, if you’re lying in bed thinking about the bills, the rising cost of fuel and food, worrying about the grandkids, or even looking forward to the days ahead—it’s impossible to fall asleep.  

The amino acid L-theanine helps to “turn down the dial” on your thoughts so you, your mind and body can relax.  And two exciting preliminary studies are showing us exactly why. They suggest that L-theanine helps increase alpha-wave activity in your brain—the exact same process that occurs when you’re sleeping.  
Stress and anxiety are debilitating conditions that upset the balance of our hormones leading to a loss of our well-being, performance, and even lifespan. Stress impairs the immune system, leaving us vulnerable to opportunistic infections, and can cause depression. 

Benefits of L-Theanine

L-theanine has a significant effect on the release or reduction of neurotransmitters like dopamine and serotonin, resulting in improved memory and learning ability. L-theanine may also influence emotions due to its effects on the increased release of dopamine. L-theanine reduces brain serotonin concentration by either curtailing serotonin synthesis or increasing degradation in the brain. 

The regulation of blood pressure is partly dependent upon catecholaminergic and serotonergic neurons in both the brain and the peripheral nervous system. Studies on spontaneously hypertensive rats (SHR) showed an impressive blood pressure lowering effect with L-theanine. The lowered blood pressure effect was dose-dependent with the highest test dose creating the most significant drop. L-glutamine was used as one of the controls. (3)

Preliminary studies report that L-theanine has been found to increase the anti-tumor activity of some chemotherapeutic agents (doxorubicin and idarubicin) and to ameliorate some of the side effects of these drugs. It appears to increase the inhibitory concentration of these drugs in the tumor cells, although the mechanism is not known. At the same time, L-theanine decreased oxidative stress caused by these agents on the normal cells, possibly due to its mild antioxidant activity. In this regard, L-theanine has been shown to inhibit lipid peroxidation, catalyzed by copper, in low-density lipoprotein (LDL) in vitro. (4)
 
Documented Safety - Hundreds of studies exist showing the many health benefits of green tea and has been consumed for thousands of years by billions of people. But what makes it the most consumed beverage in the world after water is its pleasant taste and relaxation effect. Both of these qualities—and more—can be traced to a unique, neurologically-active amino acid in tea called L-theanine (gamma-ethylamino-L-glutamic acid).
 
L-theanine is considered to be safe based on its historical use as a component of tea and on favorable toxicology studies. It is estimated that a heavy tea drinker (6-8 cups daily) will consume between 200 to 400 mg of L-theanine daily. There are no dietary limits on L-theanine intake by the Japan Food Additive Association. In 1964, the Japanese Ministry of Health and Welfare approved L-theanine for unlimited use in all foods, with the exception of infant foods.
 
L-Theanine Dosage Recommendations: L-theanine is most effective in the range of 50-200 mg, with the effect being felt within 30 minutes and lasting for 8-10 hours.
 

Essential Therapeutics Purity and Stellar Quality in Every Dose. Guaranteed!

We don’t cut corners. We intend for our products to work!
Essential Therapeutics uses only the purest, highest quality nutrients. Quality and purity are an obsession with us. Our products aren’t the cheapest priced products on the market, but we learned years ago that you get what you pay for. We don’t and won’t use cheap ingredients! Our formulas and products are based on clinical trials, experience and ongoing research. We seek out the finest ingredients on the market for our formulations.
We are dedicated to providing you with high quality pharmaceutical grade supplements specially formulated for people who are sensitive to the fillers and other additives that are used in many products. Only the purest amino acids, essential fatty acids, vitamin, minerals and herbals, are used in these formulas.

Essential Therapeutics products are produced in licensed manufacturing facilities that strictly adhere to current Good Manufacturing Practices (cGMP's). Products provided in tablet, capsule, and powder form are made in a manufacturing facility licensed by the State of California as a drug manufacturer and food processor and registered with the Food and Drug Administration as a drug manufacturing establishment. The facility is also approved by governmental agencies in the United Kingdom, the European Community (EC) and Australia to manufacture a drug product. Current GMP's and written standard operating procedures (SOP's) are strictly followed through all stages of production to produce products that meet or exceed United States Pharmacopeia (USP) standards.
Raw Material Specifications
Active ingredients used in Essential Therapeutics products are selected based on their purity, bioavailability, documented actions, and safety characteristics. USP materials, i.e., those meeting USP standards, are used for those nutrients where this standard exists. Raw materials are purchased exclusively from reputable vendors who provide detailed Certificates of Analysis for every lot of material. These certificates certify that active components, toxic elements, and microbial content are within specified acceptable parameters. Purity and potency of selected raw materials are verified through independent testing laboratories. All incoming raw materials undergo quarantine, inspection, and evaluation.
Quality Control Laboratory
On-site laboratory personnel evaluate physical characteristics of each finished product including hardness, disintegration, moisture balance, friability, and pH. Purity and potency of finished product is independently verified through outside commercial laboratories using a randomized ingredient and batch testing program.
Excipients
Essential Therapeutics products are free of artificial flavors, preservatives, and colorings. Naturally-derived, inert excipient materials, including cellulose-based excipients, vegetable-derived magnesium stearate, and silicon dioxide are used in very small amounts as tableting and encapsulation aids. Tableted products are protected with an inert, water-soluble cellulose coating that dissolves readily upon ingestion, thus facilitating tablet disintegration time.  
References
1. Kakuda T, Nozawa A, Unno T, et al. Inhibiting effects of theanine on caffeine stimulation evaluated by EEG in the rat. Biosci Biotechno Biochem 2000; 64:287-293.
2. Mason R. 200 mg of Zen; L-theanine boosts alpha waves, promotes alert relaxation. Alternative & Complementary Therapies 2001,April; 7:91-95
3. Juneja LR, Chu D-C, Okubo T, et al. L-theanine a unique amino acid of green tea and its relaxation effect in humans. Trends Food Sci Tech 1999; 10:199-204.
4. Yokozawa T, Dong E. Influence of green tea and its three major components upon low-density lipoprotein oxidation. Exp Toxicol Pathol 1997; 49(5):329-335.
Features

 In addition to relaxation, research suggests that L-theanine may have application in

  • diminishing symptoms of PMS
  • improving learning performance
  • heightening mental acuity - neurotransmitter
  • promoting concentration
  • acting antagonistically against the paralysis induced by caffeine
  • supporting the immune system
  • lowering blood pressure
  • increasing formation of the inhibitory neurotransmitter GABA, and increasing brain dopamine levels among other positive benefits with no known downside.
 

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