Shop by Health Concern Stress Support L-Theanine
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Suntheanine L-Theanine
L-theanine is an amino acid found almost exclusively in tea plants and, in particular, green tea. The pioneers at Taiyo International discovered that the relaxing properties of green tea may be tied to this unique nutrient and developed Suntheanine® L-theanine through a patented process...- $6.93
$23.09- $6.93
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GABAplex with L-Tyrosine & L-Theanine
Don't let stress overload push you over the edge—get back in control with the advanced calming nutrition of Swanson GABAplex with L-Tyrosine & L-Theanine.When excessive stress has your feeling overwhelmed, GABAplex helps bolster healthy brain and nervous system function and lighten the burden so...- $4.71
$15.69- $4.71
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Suntheanine L-Theanine
Get the most out of your life by de-stressing with Suntheanine L-Theanine! This unique amino acid has been extensively researched and shown to promote relaxation without causing drowsiness. Swanson Ultra, featuring patented SunTheanine, offers a safe and effective alternative to help you keep up...- $4.68
$15.59- $4.68
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L-Theanine
With 100 mg of L-theanine, NOW Foods' L-Theanine features an amino acid naturally found in green tea. These vegetable capsules promote relaxation without the drowsiness or negative side effects associated with other calming agents. L-theanine also supports healthy cardiovascular function through this relaxing effect...- $4.44
$14.79- $4.44
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Sleep Formula with L-Theanine and Melatonin
Four beneficial ingredients combine to counteract stress and promote restful sleep. Swanson Sleep Formula starts with Relora, a patented herbal blend that helps normalize stress-related hormones. The next ingredient is Suntheanine L-theanine, a patented amino acid (derived from green tea) that promotes mental and...- $4.68
$15.59- $4.68
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L-Theanine
An amino acid that is naturally found in green tea, NutraLife L-Theanine promotes relaxation and helps combat nervous tension. Each capsule contains 200 mg of l-theanine. Contains no peanuts, eggs, dairy, soy, wheat, yeast, gluten, tree nuts, crustacean shellfish, fish or other animal byproducts.- $3.33
$11.09- $3.33
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L-Theanine with Suntheanine
Doctor's Best® L-Theanine with Suntheanine® supports relaxation without drowsiness to help manage stress and tension. Suntheanine is the premier, patented form of the amino acid L-theanine. Suntheanine is the purest form of L-theanine on the market today, derived from the amino acid in green...- $7.38
$24.59- $7.38
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Serene Science Theanine Serene with Relora
Don't let occasional stress get you down. Theanine Serene contains the amino acid L-theanine, to support relaxing brain wave activity, and taurine to ease tension, as well as the calming neurotransmitter GABA. It also features magnesium to support muscle and nerve relaxation, and calming...- $7.77
$25.89- $7.77
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Stress Relax Suntheanine L-Theanine
Stress Relax Suntheanine L-Theanine from Natural Factors contains pure L-theanine, a unique amino acid found in green tea that is emerging as the premier natural product that supports mental calmness and relaxation. Suntheanine is produced via a proprietary enzymatic process guaranteeing essentially pure L-theanine...- $5.66
$18.87- $5.66
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L-Theanine
Nature's Way L-Theanine provides fast-acting stress relief. Fast-acting L-theanine works within 30-60 minutes to promote relaxation. Supports a calm mind without daytime drowsiness.At Nature’s Way, we believe nature is the ultimate problem solver. For over 50 years, we have looked to the natural world...- $4.47
$14.89- $4.47
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L-Theanine
Nature's Way L-Theanine provides fast-acting stress relief. Fast-acting L-theanine works within 30-60 minutes to promote relaxation. Supports a calm mind without daytime drowsiness.At Nature’s Way, we believe nature is the ultimate problem solver. For over 50 years, we have looked to the natural world...- $14.70
$48.99- $14.70
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Fermented L-Theanine
Healthy Origins L-Theanine supports relaxation as well as mental clarity and focus. An amino acid found in the Camellia sinensis (tea) plant, L-theanine has been found to stimulate production of alpha waves in the brain, waves that are detected during periods of wakeful relaxation.Â- $6.00
$19.99- $6.00
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Serene Science Theanine Serene with Magnesium
Serene Science Theanine Serene with Magnesium from Source Naturals features the amino acids L-theanine and taurine to promote brain wave activity and ease tension, plus the calming neurotransmitter GABA, magnesium and holy basil for added support. Suitable for vegetarians. Contains no yeast, dairy, egg,...- $6.72
$22.39- $6.72
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Vegan Theanine 100
Vegan Theanine 100 is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. It induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves. Theanine may improve learning ability and sensations of pleasure by...- $3.60
$11.99- $3.60
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Serene Science Theanine Serene with Relora
Don't let occasional stress get you down. Source Naturals Theanine Serene with Relora delivers the amino acids L-theanine, to support relaxing brain wave activity as well as the calming neurotransmitter GABA. It also features magnesium to support muscle and nerve relaxation, calming holy basil...- $4.09
$13.65- $4.09
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Vegan Theanine 200 Extra Strength
Get back to your positive mood and encourage restorative sleep with Jarrow Formulas’ Vegan Theanine 200 Extra Strength. Each serving delivers 200 mg L-theanine to promote relaxation without drowsiness. Theanine is an amino acid commonly found in tea and some mushrooms that has properties...- $6.30
$20.99- $6.30
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GABA L-Theanine Stress B - Mango Tangerine
Help take the edge off a stressful day with GABA L-Theanine Stress B - Mango Tangerine by KAL. This unique formula combines B vitamins with GABA and l-theanine, 2 amino acids that promote healthy relaxation.- $3.96
$13.19- $3.96
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L-Theanine with Green Tea
L-Theanine is a free-form amino acid found in green tea. Each convenient, one-VegCap serving of Solaray L-Theanine includes L-theanine 200mg. In addition, it includes 100 mg of green tea (Camellia sinensis) (leaf) for powerful, additional nutritive support. With a long history of use, studies...- $8.79
$29.29- $8.79
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Serene Science L-Theanine
Help yourself relax with Source Naturals Serene Science L-Theanine! L-Theanine is a unique amino acid found almost exclusively in the tea plant (Camellia sinensis) and is the primary ingredient contributing to the unusual taste of green tea. Animal studies have shown that L-theanine crosses...- $7.35
$24.49- $7.35
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L-Theanine
L-Theanine is a fast acting formula from Country Life that is designed to promote relaxation and mental calmness. These great-tasting smooth melts deliver 100 mg of l-theanine per serving. L-Theanine contains no gluten, yeast, wheat, soy, milk, salt, preservatives, artificial color or flavor, magnesium...- $7.41
$24.69- $7.41
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