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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 36% Twinlab - L-Theanine Dots - 60 Tablets
Twinlab - L-Theanine Dots - 60 Tablets


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


Save 47% KAL - L-Theanine 100mg - 30ct Tab
KAL - L-Theanine 100mg - 30ct Tab


DescriptionSuggested Retail PriceOur Price SKU
Action Labs - Super 5-HTP 250mg - 50ct Vcp $27.69 $14.80Save 47% AL-18004
Allergy Research Group - 200 Mg Of Zen Caps - 60 $31.50 $31.50 ARG-74700
Country Life - L-Theanine 100mg Fast Acting Mint - 60 Smooth Melts $25.99 $13.00Save 50% 15794-01414
Country Life - L-Theanine W/B6 Ules 30 - 30 Caps $21.99 $13.19Save 40% CL-1411
Country Life - L-Theanine W/B6 Ules 60 - 60 Caps $31.99 $19.19Save 40% CL-1412
Davinci Labs - L-Theanine - 120 VegCapsules $56.00 $56.00 DV-21321
Davinci Labs - L-Theanine 200 mg - 60 $32.40 $32.40 DV-2132_06
Davinci Labs - L-Theanine 30 Veggie Capsules $18.40 $18.40 DV-2132_03
Enzymatic Therapy - L-Theanine - 180 Veg Caps $49.50 $24.75Save 50% ENZ-09550
Enzymatic Therapy - L-Theanine - 60 Veg Caps $19.50 $9.75Save 50% ENZ-09556
Food Science - Instacalm - 30 $40.40 $20.20Save 50% FS-3135_3
Food Science - L-Theanine - 30 CAP $18.80 $9.40Save 50% FS-3132_3
Food Science - L-Theanine - 60 CAP $33.60 $16.80Save 50% FS-3132_6
Futurebiotics - L-Theanine 100mg - 60 Vcaps $28.99 $16.68Save 42% 49479-00657
Good N Natural - L-Theanine 100 mg - 60 Capsule $20.50 $10.25Save 50% 98138-12880
Herb Pharm - Good Mood Tonic - 4 oz $49.39 $37.30Save 24% 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 $16.49Save 36% 90011-15057
KAL - GABA L-Theanine Stress B Mango Tangerine 100ct $13.49 $7.16Save 47% 21245-27691
KAL - L-Theanine 100mg - 30ct Tab $11.49 $6.14Save 47% KAL-83777
KAL - Melatonin L-Theanine 2.5mg/100mg - 30ct Tab $15.29 $8.17Save 47% 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
Michael's Naturopathic - Brighten Up - 14 Veg Caps $10.99 $8.24Save 25% 55929-01174
Natural Balance - Trim Core - 60ct Vcp $20.59 $11.01Save 47% 47868-53443
Natural Factors - Stress Relax Suntheanine L-Theanine - 60 Chew Tabs $25.95 $18.17Save 30% NF-2832
Nature's Life - L-Theanine 400mg 30ct Tab $31.49 $16.83Save 47% NL-18251
Now - L-Theanine 100Mg 90 Vcaps $23.99 $11.99Save 50% NW-0145
Now - L-Theanine 200mg - 120 veg Caps $45.99 $23.45Save 49% 33739-00148
Physiologics - L-Theanine 100 mg 60 caps $22.15 $19.93Save 10% PHY-12882
Pure Encapsulations - L-Theanine - 120 vcaps $79.80 $79.80 PE-LTH1
Pure Encapsulations - L-Theanine - 60 vcaps $43.70 $43.70 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 $13.99 $8.35Save 40% SLRY-10722
Solgar - L-Theanine 150 mg Vegetable Capsules - 60 K $30.89 $24.71Save 20% SLGR-2706
Thompson - L-Theanine Maxicaps 200mg - 30ct Vcp $14.19 $7.59Save 47% 31315-19632
Twinlab - L-Theanine Dots - 60 Tablets $9.99 $6.37Save 36% 27434-04061

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