Compare L Theanine Supplements
Browse 129+ L Theanine products and open side-by-side comparisons: bottle price, cost per serving, active amount per serving, and serving form—so you can judge tradeoffs for your own goals.
Starting points in L Theanine
All L Theanine Products (129)
Advance Physician Formulas
Advance Physician Formulas, L-Theanine, 200 mg, 60 Capsules
$0.13/srv
★4.7(615)
Allergy Research Group
Allergy Research Group, Zen Sleep, 60 Vegetarian Capsules
$1.35/srv
★4.7(240)
Allergy Research Group
Allergy Research Group, Zen, 120 Vegetarian Capsules
$0.98/srv
★4.8(186)
Barlean's
Barlean's, Mood Drops™, To Be Resilient, 1.5 fl oz (45 ml)
$0.75/srv
Barlean's
Barlean's, Mood Drops™, To Perform, 1.5 fl oz (45 ml)
$0.75/srv
★4.2(4)
BrainMD
BrainMD, L-theanine Gummies, Berry , 60 Vegan Gummies (100 mg per Gummy)
$0.37/srv
★4.5(46)
California Gold Nutrition
California Gold Nutrition, L-Theanine, Featuring AlphaWave, 100 mg, 30 Veggie Capsules
$0.15/srv
★4.7(22,683)
California Gold Nutrition
California Gold Nutrition, L-Theanine, Featuring AlphaWave®, 100 mg, 60 Veggie Capsules
$0.16/srv
★4.7(22,709)
California Gold Nutrition
California Gold Nutrition, L-Theanine, Featuring AlphaWave®, 200 mg, 60 Veggie Capsules
$0.17/srv
★4.7(15,095)
California Gold Nutrition
California Gold Nutrition, TheanineUP™, L-Theanine & Caffeine Plus Cocoa, and Matcha, 60 Veggie Capsules
$0.25/srv
★4.6(1,936)
Carlson
Carlson, Totally Zen with GABA, L-Theanine & B Vitamins, 120 Capsules
$0.25/srv
★4.7(398)
Carlson
Carlson, Totally Zen with GABA, L-Theanine & B Vitamins, 30 Capsules
$0.28/srv
★4.7(398)
ChildLife Essentials
ChildLife Essentials, Kids, Sleep Essential®, Natural Berry, 2 fl oz (59 ml)
$0.31/srv
★4.6(223)
Country Life
Country Life, L-Theanine, 200 mg, 60 Vegan Capsules
$0.50/srv
★4.7(234)
Cymbiotika
Cymbiotika, Golden Mind, Brain Health, Vanilla Chai, 30 Pouches, 5 ml Each
$2.07/srv
★4.6(40)
DaVinci Laboratories
DaVinci Laboratories, L-Theanine , 200 mg , 60 Capsules
$0.81/srv
★4.8(49)
DaVinci Laboratories
DaVinci Laboratories, L-Theanine, 200 mg, 120 Capsules
$0.41/srv
★4.8(49)
DaVinci Laboratories
DaVinci Laboratories, Liposomal L-Theanine, Fruit Punch, 1 fl oz (30 ml)
$1.60/srv
★4.6(51)
Diso
Diso, Snooze, Cherry, 30 Oral Strips
$0.83/srv
Doctor's Best
Doctor's Best, L-Theanine, 150 mg, 90 Veggie Caps
$0.24/srv
★4.6(4,377)
Showing 20 of 129 products