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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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325 products found

Form:All forms325Capsule323Softgel1Powder1
Package Size:All sizes311< 603260–120148120–250105250+26

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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 99%
#241
Life Extension Potassium with Extend-Release Magnesium, 60 Capsules
$0.56per gram
$6.75 / bottle
Life Extension Potassium with Extend-Release Magnesium, 60 Capsules
Life ExtensionAmazon
Per Serving$0.11
Servings60
Formcapsule
Updated today
BuyAffiliate link
Save 99%
#242
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
iBuyAffiliate link

All options (sorted by value):

i
iHerb60 ctForce Factor L-Theanine Extra Strength 200mg, 60 Vegetarian Capsules
$6.99Buy
i
Force Factor Magnesium + L-Theanine Vegetable Capsules, 120 Count
$19.97Buy
Save 99%
#243
Swanson Ashwagandha with KSM-66
$0.59per gram
$17.60 / bottle
Swanson Ashwagandha with KSM-66
YoutheorySwanson Vitamins
Per Serving$0.59
Servings30
Formcapsule
Updated today
SBuyAffiliate link
Save 98%
#244
Source Naturals Ultra-Mag, 180 Vegan Capsules
$0.64per gram
$16.09 / bottle
Source Naturals Ultra-Mag, 180 Vegan Capsules
Source NaturalsiHerb2 options · 2 retailers
Per Serving$0.27
ServingsN/A
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerbSource Naturals Ultra-Mag, 180 Vegan Capsules
$16.09Buy
Amazon30 ctSource Naturals Ultra-Mag Magnesium Vegan Capsules, 90 Count
$11.97Buy
Save 98%
#245
Organika L-Theanine 225 mg, 90 Vegetarian Capsules
$0.64per gram
$11.04 / bottle
Organika L-Theanine 225 mg, 90 Vegetarian Capsules
OrganikaiHerbNew
Per Serving$0.14
Servings90
Formcapsule
Updated today
iBuyAffiliate link
Save 98%
#246
Natural Factors Magnesium Citrate 150 mg, 180 Capsules
$0.65per gram
$17.47 / bottle
Natural Factors Magnesium Citrate 150 mg, 180 Capsules
Natural FactorsAmazon
Per Serving$0.10
Servings180
Formcapsule
Updated today
BuyAffiliate link
Save 98%
#247
EVLution Nutrition Alpha GPC, 60 Veg Capsules
$0.66per gram
$11.93 / bottle
EVLution Nutrition Alpha GPC, 60 Veg Capsules
EVLutioniHerbNew
Per Serving$0.40
Servings30
Formcapsule
Updated today
iBuyAffiliate link
Save 98%
#248
NOW Foods Magnesium Malate Capsules, 180 Count
$0.68per gram
$14.69 / bottle
NOW Foods Magnesium Malate Capsules, 180 Count
NOW FoodsAmazon
Per Serving$0.08
Servings180
Formcapsule
Updated today
BuyAffiliate link
Save 99%
#249
Real Mushrooms Lion's Mane Pet Mushroom Supplement Capsules, 120 Count
$0.69per gram
$24.95 / bottle
Real Mushrooms Lion's Mane Pet Mushroom Supplement Capsules, 120 Count
Real MushroomsAmazon
Per Serving$0.21
Servings120
Formcapsule
Updated today
BuyAffiliate link
Save 98%
#250
Magnesium Citrate Capsules
$0.69per gram
$24.97 / bottle
Magnesium Citrate Capsules
BulkSupplementsBulkSupplements2 options · 2 retailers
Per Serving$0.28
ServingsN/A
Formcapsule
Updated today
BBuyAffiliate link

All options (sorted by value):

B
BulkSupplementsMagnesium Citrate Capsules
$24.97Buy
Amazon90 ctBulkSupplements Magnesium Citrate Capsules, 360 Count
$24.97Buy
Save 98%
#251
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 98%
#252
NOW Foods L-Theanine, 90 Veg Capsules
$0.75per gram
$13.46 / bottle
NOW Foods L-Theanine, 90 Veg Capsules
NOW FoodsiHerb3 options
Per Serving$0.15
ServingsN/A
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerbNOW Foods L-Theanine, 90 Veg Capsules
$13.46Buy
i
120 ctNOW Foods L-Theanine, 120 Veg Capsules
$24.13Buy
i
NOW Foods L-Theanine, 60 Veg Capsules
$15.91Buy
Save 98%
#253
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
ServingsN/A
Formcapsule
Updated today
BuyAffiliate link

All options (sorted by value):

AmazonNature's Truth L Theanine 200mg, 60 Capsules
$8.99Buy
i
iHerbNature's Truth L-Theanine 200 mg, 60 Capsules
$9.08Buy
Amazon30 ctNature's Truth KSM-66 Ashwagandha with L-Theanine, 60 Caplets
Buy
Save 98%
#254
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
iBuyAffiliate link

All options (sorted by value):

i
iHerb60 ctCalifornia Gold Nutrition L-Theanine, 100 mg, 60 Count
$4.50Buy
AmazonCalifornia Gold Nutrition L-Theanine, 100 mg, 60 Veggie Capsules
$9.99Buy
Save 98%
#255
Host Defense Mushrooms Lion's Mane Capsules, 120 Count
$0.79per gram
$47.21 / bottle
Host Defense Mushrooms Lion's Mane Capsules, 120 Count
Host Defense Mushrooms Lion's ManeAmazon6 options · 2 retailers
Per Serving$0.79
ServingsN/A
Formcapsule
Updated today
BuyAffiliate link

All options (sorted by value):

AmazonHost Defense Mushrooms Lion's Mane Capsules, 120 Count
$47.21Buy
i
iHerbHost Defense Lion's Mane Mushrooms, 120 Capsules
$47.22Buy
AmazonHost Defense Lion's Mane Mushroom Capsules, 60 Count
$25.46Buy
+3 more...
Save 98%
#256
Nutricost Alpha GPC Capsules 300mg, 60 Count
$0.83per gram
$14.95 / bottle
Nutricost Alpha GPC Capsules 300mg, 60 Count
NutricostiHerbNew
Per Serving$0.50
Servings30
Formcapsule
Updated today
iBuyAffiliate link
Save 99%
#257
BioSchwartz 13-in-1 Mushroom Complex Capsules, 90 Count
$0.83per gram
$14.97 / bottle
BioSchwartz 13-in-1 Mushroom Complex Capsules, 90 Count
BioSchwartz 13-in-1Amazon
Per Serving$0.33
Servings45
Formcapsule
Updated today
BuyAffiliate link
Save 98%
#258
BulkSupplements Magnesium Malate Capsules, 240 Count
$0.83per gram
$19.97 / bottle
BulkSupplements Magnesium Malate Capsules, 240 Count
BulkSupplementsAmazon2 options · 2 retailers
Per Serving$0.33
ServingsN/A
Formcapsule
Updated today
BuyAffiliate link

All options (sorted by value):

AmazonBulkSupplements Magnesium Malate Capsules, 240 Count
$19.97Buy
B
BulkSupplements60 ctBulkSupplements Magnesium Malate Capsules
$19.97Buy
Save 99%
#259
Vital Extracts Ashwagandha
$0.84per gram
$23.79 / bottle
Vital Extracts Ashwagandha
SolaraySwanson VitaminsNew
Per Serving$0.40
Servings60
Formcapsule
Updated today
SBuyAffiliate link
Save 98%
#260
Alpha GPC Capsules
$0.85per gram
$22.97 / bottle
Alpha GPC Capsules
BulkSupplementsBulkSupplements
Per Serving$0.26
Servings90
Formcapsule
Updated today
BBuyAffiliate link
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