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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

Form:All forms11Capsule8Powder1Softgel1Liquid1
Package Size:All sizes860–1207120–2501

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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

In Stock Only
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Save 97%
Best Deal
#1
fitcode L-Theanine 200mg Capsules
$0.40per gram
$4.75 / bottle
fitcode L-Theanine 200mg Capsules
fitcode LAmazon
Per Serving$0.08
Servings60
Formcapsule
Updated today
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Save 95%
#2
NOW Foods L-Theanine Pure Powder, 1-Ounce
$0.75per gram
$19.80 / bag
NOW Foods L-Theanine Pure Powder, 1-Ounce
NOW FoodsAmazon2 options · 2 retailers
Per Serving$0.21
Servings93
Formpowder
Updated today
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Amazon93 ctNOW Foods L-Theanine Pure Powder, 1-Ounce
$19.80Buy
i
iHerb94 ctNOW Foods L-Theanine Pure Powder, 1 oz
$22.03Buy
Save 95%
#3
Nature's Truth L Theanine 200mg, 60 Capsules
$0.75per gram
$8.99 / bottle
Nature's Truth L Theanine 200mg, 60 Capsules
Nature's TruthAmazon2 options · 2 retailers
Per Serving$0.15
Servings60
Formcapsule
Updated today
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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
Save 90%
#4
NOW Foods L-Theanine 100 mg with Decaf Green Tea Veg Capsules, 90 Count
$1.41per gram
$12.70 / bottle
NOW Foods L-Theanine 100 mg with Decaf Green Tea Veg Capsules, 90 Count
NOW FoodsAmazon2 options
Per Serving$0.14
Servings90
Formcapsule
Updated today
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All options (sorted by value):

Amazon90 ctNOW Foods L-Theanine 100 mg with Decaf Green Tea Veg Capsules, 90 Count
$12.70Buy
90 ctNOW Foods L-Theanine 100 mg with Decaf Green Tea Veg Capsules, 90 Count
$23.89Buy
Save 90%
#5
Sports Research L-Theanine 200mg with Organic Coconut Oil
$1.48per gram
$35.47 / bottle
Sports Research L-Theanine 200mg with Organic Coconut Oil
Sports ResearchAmazon4 options · 2 retailers
Per Serving$0.30
Servings120
Formsoftgel
Updated today
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All options (sorted by value):

Amazon120 ctSports Research L-Theanine 200mg with Organic Coconut Oil
$35.47Buy
i
iHerb120 ctSports Research L-Theanine 200 mg, 120 Softgels
$38.97Buy
Amazon60 ctSports Research Double Strength L-Theanine Softgels, 200mg, 60 Count
$19.95Buy
+1 more...
Save 88%
#6
Doctor's BEST L-Theanine, 150 mg, 90 Count
$1.70per gram
$22.99 / bottle
Doctor's BEST L-Theanine, 150 mg, 90 Count
Doctor's BestAmazon
Per Serving$0.26
Servings90
Formcapsule
Updated just now
BuyAffiliate link
Save 87%
#7
Sports Research L-Theanine with Caffeine & Coconut MCT Oil Liquid Softgels, 60 Count
$1.91per gram
$22.95 / bottle
Sports Research L-Theanine with Caffeine & Coconut MCT Oil Liquid Softgels, 60 Count
Sports ResearchAmazon
Per Serving$0.38
Servings60
Formliquid
Updated today
BuyAffiliate link
Save 80%
#8
Evlution Nutrition Magnesium + L-Theanine Veggie Capsules, 90 Count
$2.89per gram
$12.99 / bottle
Evlution Nutrition Magnesium + L-Theanine Veggie Capsules, 90 Count
EVLutionAmazon
Per Serving$0.29
Servings45
Formcapsule
Updated just now
BuyAffiliate link
Save 69%
#9
Sports Research Sleep Complex Capsules, 30 Servings
$4.49per gram
$26.95 / bottle
Sports Research Sleep Complex Capsules, 30 Servings
Sports ResearchAmazon2 options
Per Serving$0.90
Servings30
Formcapsule
Updated today
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All options (sorted by value):

Amazon30 ctSports Research Sleep Complex Capsules, 30 Servings
$26.95Buy
30 ctSports Research Sleep Complex with Melatonin 5mg, L-Theanine 200mg & Magnesium, 60 Veggie Capsules
$27.95Buy
Save 63%
#10
Doctors Best Womens Beauty Sleep with Magnesium, Theanine, Melatonin, 60 Veggie Caps
$5.42per gram
$16.25 / bottle
Doctors Best Womens Beauty Sleep with Magnesium, Theanine, Melatonin, 60 Veggie Caps
Doctor's BestAmazon
Per Serving$0.54
Servings30
Formcapsule
Updated today
BuyAffiliate link
#11
Metabolic Maintenance MetaCalm GABA L-Theanine Capsules, 90 Count
$14.67per gram
$44.00 / bottle
Metabolic Maintenance MetaCalm GABA L-Theanine Capsules, 90 Count
Metabolic Maintenance MetaCalmAmazon
Per Serving$1.47
Servings30
Formcapsule
Updated today
BuyAffiliate link

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