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L-Theanine


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Theanine is an amino acid commonly found in tea (infusions of Camellia sinensis). Theanine is related to glutamine, and can cross the blood-brain barrier. Because it can enter the brain, theanine has psychoactive properties. Theanine has been shown to reduce mental and physical stress, may produce feelings of relaxation and improves cognition and mood when taken in combination with caffeine.

Theanine increases brain serotonin, dopamine, GABA levels and has micromolar affinities for AMPA, Kainate and NMDA receptors. Theanine also promotes alpha wave production in the brain.


Save 48% KAL - L-Theanine 100mg - 30ct Tab
KAL - L-Theanine 100mg - 30ct Tab


Save 50% Now - L-Theanine 200 Mg  60 Vcaps
Now - L-Theanine 200 Mg 60 Vcaps


DescriptionSuggested Retail PriceOur Price SKU
Allergy Research Group - 200 Mg Of Zen Caps - 60 $34.02 $34.02 ARG-74700
Country Life - L-Theanine 100mg Fast Acting Mint 60chw $25.99 $15.59Save 40% 15794-01414
Country Life - L-Theanine 200mg 60vcap $31.99 $19.19Save 40% CL-1412
Country Life - L-Theanine W/B6 Ules 30 - 30 Caps $21.99 $13.19Save 40% CL-1411
Creative Bioscience - Stress Formula 60 Vcap $24.99 $13.77Save 45% 16907-01176
Davinci Labs - L-Theanine - 120 VegCapsules $58.80 $58.80 DV-21321
Davinci Labs - L-Theanine 200 mg - 60 $34.40 $34.40 DV-2132_06
Davinci Labs - L-Theanine 30 Veggie Capsules $19.60 $19.60 DV-2132_03
Enzymatic Therapy - L-Theanine - 180 Veg Caps $49.50 $27.12Save 45% ENZ-09550
Enzymatic Therapy - L-Theanine - 60 Veg Caps $19.50 $10.68Save 45% ENZ-09556
Enzymatic Therapy - Sleep Tonight Melatonin Drops with L-Theanine Cherry - 2floz $17.95 $9.87Save 45% ENZ-10746
Essential Source - Ystress Stick Packs 4.5g each-12 Stick Packs $16.99 $8.89Save 48% ESS-10085
Food Science - Instacalm - 30 $41.60 $20.80Save 50% FS-3135_3
Food Science - L-Theanine - 30 CAP $19.60 $9.80Save 50% FS-3132_3
Food Science - L-Theanine - 60 CAP $34.80 $17.40Save 50% FS-3132_6
Good N Natural - L-Theanine 100 mg - 60 Capsule $20.50 $10.25Save 50% 98138-12880
Herb Pharm - Good Mood Tonic - 4 oz $53.19 $38.40Save 28% 90800-00079
Integrative Therapeutics - L-Theanine 60 UltraCaps $19.50 $19.50 ITI-00156
Irwin Naturals - Sunny Mood - 75 Liquid Softgels $27.99 $20.99Save 25% 10363-58051
Jarrow - Theanine 200MG - 60 Caps $25.95 $15.79Save 39% 90011-15057
KAL - GABA L-Theanine Stress B Mango Tangerine 100ct $14.39 $7.44Save 48% 21245-27691
KAL - L-Theanine 100mg - 30ct Tab $12.09 $6.30Save 48% KAL-83777
KAL - L-Theanine 25mg/Pinapple - 120 Lozenges $10.99 $7.25Save 34% 21245-40757
KAL - Melatonin L-Theanine 2.5mg/100mg - 30ct Tab $15.59 $8.11Save 48% KAL-74205
Kyolic - Blood Pressure Health Formula 109 - 80 Capsules $26.45 $17.41Save 34% 23542-10941
Life Extension - L-Theanine 100mg - 60 Vegetarian Capsules $24.00 $18.00Save 25% 37870-16836
Natural Balance - Trim Core - 60ct Vcp $21.29 $11.38Save 47% 47868-53443
Natural Factors - Stress Relax Suntheanine L-Theanine - 60 Chew Tabs $25.95 $18.17Save 30% NF-2832
Now - L-Theanine 100Mg 90 Vcaps $21.99 $10.99Save 50% NW-0145
Now - L-Theanine 200mg - 120 veg Caps $45.99 $23.45Save 49% 33739-00148
Pure Encapsulations - L-Theanine - 120 vcaps $82.40 $82.40 PE-LTH1
Pure Encapsulations - L-Theanine - 60 vcaps $45.30 $45.30 PE-LTH6
Redd Remedies - At Ease - 80 tabs $28.99 $23.19Save 20% 55735-00105
Redd Remedies - At Ease PM - 30 caps $25.99 $20.79Save 20% 55735-00115
Solaray - L-Theanine Gumlet Mint 100mg - 30ct Gum $14.99 $9.25Save 38% SLRY-10722
Solgar - L-Theanine 150 mg Vegetable Capsules - 60 K $31.80 $25.44Save 20% SLGR-2706
Source Naturals - Serene Science L-Theanine 200mg - 120 Capsules $61.50 $30.14Save 51% 21078-02427
Thompson - L-Theanine Maxicaps 200mg 30vcap $14.79 $7.91Save 47% 31315-19632

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