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Compare supplement prices normalized to cost per gram of active ingredient. No health claims — just transparent pricing data.

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11 products found

Package Size:All sizes1160–1208120–2503

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Supplement Type

Alpha GPCAshwagandhaB ComplexCalciumCollagenCoQ10CreatineImmune SupportInositolL-TheanineLion's ManeMagnesiumNadNmnNootropicsNrOmega-3ProbioticsProteinPterostilbeneResveratrolSpermidineSuperfoodsVitamin CVitamin DZinc

Retailer

AmazonBulkSupplementsiHerbSwanson Vitamins

Brand

21st CenturyABEALLMAXAdvanced ClinicalsAgeless Foundation Laboratories

Form

capsulecapsulesgummyliquidlozengepowdersoftgeltablet

Availability

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Save 84%
Best Deal
#1
Nutricost L-Theanine 200mg, 240 Capsules
$0.42per gram
$19.95 / bottle
Nutricost L-Theanine 200mg, 240 Capsules
NutricostiHerbNew2 options
Per Serving$0.08
Servings240
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerb240 ctNutricost L-Theanine 200mg, 240 Capsules
$19.95Buy
i
30 ctNutricost L-Theanine 200mg Capsules, 30 Count
$5.70Buy
Save 81%
#2
Nutricost L-Theanine 200 mg, 120 Capsules
$0.50per gram
$11.95 / bottle
Nutricost L-Theanine 200 mg, 120 Capsules
NutricostiHerbNew2 options
Per Serving$0.10
Servings120
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerb120 ctNutricost L-Theanine 200 mg, 120 Capsules
$11.95Buy
i
30 ctNutricost L-Theanine 200mg, 30 Count
$19.95Buy
Save 80%
#3
Primaforce L-Theanine 200mg, 120 Capsules
$0.52per gram
$12.50 / bottle
Primaforce L-Theanine 200mg, 120 Capsules
PrimaforceiHerbNew
Per Serving$0.10
Servings120
Formcapsule
Updated today
iBuyAffiliate link
Save 79%
#4
Organika L-Theanine 225 mg, 90 Vegetarian Capsules
$0.55per gram
$11.04 / bottle
Organika L-Theanine 225 mg, 90 Vegetarian Capsules
OrganikaiHerbNew
Per Serving$0.12
Servings90
Formcapsule
Updated today
iBuyAffiliate link
Save 78%
#5
Force Factor L-Theanine Extra Strength 200mg, 60 Vegetarian Capsules
$0.58per gram
$6.99 / bottle
Force Factor L-Theanine Extra Strength 200mg, 60 Vegetarian Capsules
Force FactoriHerbNew2 options
Per Serving$0.12
Servings60
Formcapsule
Updated today
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All options (sorted by value):

i
iHerb60 ctForce Factor L-Theanine Extra Strength 200mg, 60 Vegetarian Capsules
$6.99Buy
i
60 ctForce Factor Magnesium + L-Theanine Vegetable Capsules, 120 Count
$19.97Buy
Save 73%
#6
NutraLife L-Theanine 200 mg, 60 Capsules
$0.71per gram
$8.54 / bottle
NutraLife L-Theanine 200 mg, 60 Capsules
NutraLifeiHerbNew
Per Serving$0.14
Servings60
Formcapsule
Updated today
iBuyAffiliate link
Save 71%
#7
Nature's Truth L Theanine 200mg, 60 Capsules
$0.75per gram
$8.99 / bottle
Nature's Truth L Theanine 200mg, 60 Capsules
Nature's TruthAmazon3 options · 2 retailers
Per Serving$0.15
Servings60
Formcapsule
Updated yesterday
BuyAffiliate link

All options (sorted by value):

Amazon60 ctNature's Truth L Theanine 200mg, 60 Capsules
$8.99Buy
i
iHerb60 ctNature's Truth L-Theanine 200 mg, 60 Capsules
$9.08Buy
Amazon30 ctNature's Truth KSM-66 Ashwagandha with L-Theanine, 60 Caplets
Buy
Save 71%
#8
California Gold Nutrition L-Theanine, 100 mg, 60 Count
$0.75per gram
$4.50 / bottle
California Gold Nutrition L-Theanine, 100 mg, 60 Count
California Gold NutritioniHerbNew2 options · 2 retailers
Per Serving$0.07
Servings60
Formcapsule
Updated today
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All options (sorted by value):

i
iHerb60 ctCalifornia Gold Nutrition L-Theanine, 100 mg, 60 Count
$4.50Buy
Amazon60 ctCalifornia Gold Nutrition L-Theanine, 100 mg, 60 Veggie Capsules
$9.99Buy
Save 40%
#9
California Gold Nutrition L-Theanine 100 mg, 60 Veg Capsules
$1.57per gram
$9.43 / bottle
California Gold Nutrition L-Theanine 100 mg, 60 Veg Capsules
California Gold NutritioniHerbNew
Per Serving$0.16
Servings60
Formcapsule
Updated today
iBuyAffiliate link
Save 26%
#10
Swanson Suntheanine L-Theanine 200 mg, 60 Capsules
$1.92per gram
$23.09 / bottle
Swanson Suntheanine L-Theanine 200 mg, 60 Capsules
SwansoniHerbNew2 options
Per Serving$0.38
Servings60
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerb60 ctSwanson Suntheanine L-Theanine 200 mg, 60 Capsules
$23.09Buy
i
60 ctSwanson Suntheanine L-Theanine 200 mg, 60 Vegan Capsules
$23.09Buy
#11
Swanson Suntheanine L-Theanine 100 mg, 200 Count
$2.60per gram
$15.59 / bottle
Swanson Suntheanine L-Theanine 100 mg, 200 Count
SwansoniHerbNew2 options
Per Serving$0.26
Servings60
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerb60 ctSwanson Suntheanine L-Theanine 100 mg, 200 Count
$15.59Buy
i
60 ctSwanson Suntheanine L-Theanine 100 mg, 60 Veg Capsules
$15.59Buy

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