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L Theanine

Black and green teas are made from the same plant; however, black tea has been oxidized, altering its structure. Black tea contains high levels of theanine, which has shown initial benefits for those with heart disease, although more study is needed.

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Now Foods Jarrow Formulas Doctor's Best Source Naturals Natural Factors Country Life, Gluten Free Life Extension Solgar Enzymatic Therapy Thorne Research Nutricology Paradise Herbs Bluebonnet Nutrition Olympian Labs Inc. Pure Essence View More »

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Nutricology, ZenMind, 60 Veggie Caps

16
$18.29 $30.50

Paradise Herbs, Optimized Sun Theanine, 100 mg, 30 Veggie Caps

10
$9.12 $19.99

Country Life, Gluten Free, L-Theanine, 200 mg, 60 Veggie Caps

6
$21.76 $31.99

Now Foods, L-Theanine, Double Strength, 200 mg, 60 Vcaps

141
$19.11 $29.99
Out of Stock

Olympian Labs Inc., L-Theanine, 60 Capsules

2
$22.07 $33.95

Life Extension, Theaflavin, Standardized Extract, 30 Veggie Caps

1
$13.50 $18.00

Bluebonnet Nutrition, L-Theanine, 150 mg, 60 Vcaps

7
$35.16 $43.95

Solgar, L-Theanine, Free Form, 150 mg, 60 Veggie Caps

6
$23.98 $29.98

Thorne Research, Theanine, 90 Veggie Caps

1
$50.55

FoodScience, L-Theanine, 200 mg, 60 Capsules

2
$18.69 $32.00

Allergy Research Group, Zen, 60 Veggie Caps

5
$24.42 $30.50

Pure Essence, CalmEssence, 30 Veggie Caps

1
$29.99 $46.14