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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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426 products found

Form:All forms426Capsule424Softgel1Tablet1
Package Size:All sizes397< 604360–120198120–250122250+34

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Supplement Type

Alpha GPCAshwagandhaB ComplexCollagenCoQ10CreatineImmune SupportInositolL-TheanineLion's ManeMagnesiumNadNmnNootropicsNrOmega-3ProbioticsProteinPterostilbeneResveratrolSpermidineSuperfoodsVitamin CVitamin DZinc

Retailer

AmazonBulkSupplementsiHerbSwanson Vitamins

Brand

21st CenturyABEALLMAXAdvanced ClinicalsAgeless Foundation Laboratories

Form

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Availability

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Save 95%
#381
BlueBonnet Nutrition Magnesium Glycinate 400mg Veggie Capsules, 120 Count
$2.00per gram
$23.96 / bottle
BlueBonnet Nutrition Magnesium Glycinate 400mg Veggie Capsules, 120 Count
BluebonnetAmazon
Per Serving$0.80
Servings30
Formcapsule
Updated today
BuyAffiliate link
Save 95%
#382
Swanson Marine Magnesium
$2.20per gram
$15.89 / bottle
Swanson Marine Magnesium
SwansonSwanson Vitamins
Per Serving$0.26
Servings60
Formcapsule
Updated today
SBuyAffiliate link
Save 95%
#383
Dr. Mercola Quercetin and Pterostilbene Advanced, 60 Capsules
$2.20per gram
$32.99 / bottle
Dr. Mercola Quercetin and Pterostilbene Advanced, 60 Capsules
Dr. MercolaiHerb
Per Serving$1.10
Servings30
Formcapsule
Updated today
iBuyAffiliate link
Save 94%
#384
Thorne Magnesium Glycinate Capsules, 90 Count
$2.31per gram
$25.00 / bottle
Thorne Magnesium Glycinate Capsules, 90 Count
ThorneiHerb
Per Serving$0.28
Servings90
Formcapsule
Updated today
iBuyAffiliate link
Save 94%
#385
Doctor's Best High Absorption Magnesium, 120 Veggie Caps
$2.38per gram
$14.99 / bottle
Doctor's Best High Absorption Magnesium, 120 Veggie Caps
Doctor's BestiHerb
Per Serving$0.25
ServingsN/A
Formcapsule
Updated today
iBuyAffiliate link
Save 94%
#386
Swanson Magnesium Lysinate Glycinate Chelated
$2.38per gram
$14.99 / bottle
Swanson Magnesium Lysinate Glycinate Chelated
Doctor's BestSwanson Vitamins
Per Serving$0.25
ServingsN/A
Formcapsule
Updated today
SBuyAffiliate link
Save 94%
#387
Nordic Naturals Magnesium Glycinate Capsules, 90 Count
$2.49per gram
$18.66 / bottle
Nordic Naturals Magnesium Glycinate Capsules, 90 Count
Nordic NaturalsAmazon
Per Serving$0.62
Servings30
Formcapsule
Updated today
BuyAffiliate link
Save 94%
#388
Doctor's BEST High Absorption Magnesium Glycinate Lysinate Capsules, 120 Veg Caps
$2.53per gram
$15.97 / bottle
Doctor's BEST High Absorption Magnesium Glycinate Lysinate Capsules, 120 Veg Caps
Doctor's BestAmazon
Per Serving$0.27
Servings60
Formcapsule
Updated today
BuyAffiliate link
Save 94%
#389
Doctor's BEST L-Theanine, 150 mg, 90 Count
$2.55per gram
$22.99 / bottle
Doctor's BEST L-Theanine, 150 mg, 90 Count
Doctor's BestAmazon
Per Serving$0.26
Servings90
Formcapsule
Updated today
BuyAffiliate link
Save 94%
#390
Swanson Suntheanine L-Theanine 100 mg, 200 Count
$2.60per gram
$15.59 / bottle
Swanson Suntheanine L-Theanine 100 mg, 200 Count
SwansoniHerb2 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
Save 93%
#391
Host Defense MycoBotanicals Brain Capsules, 60 Count
$2.66per gram
$23.96 / bottle
Host Defense MycoBotanicals Brain Capsules, 60 Count
Host DefenseAmazon
Per Serving$0.80
Servings30
Formcapsule
Updated today
BuyAffiliate link
Save 93%
#392
Source Naturals Magnesium Malate 625mg, 200 Capsules
$2.75per gram
$15.49 / bottle
Source Naturals Magnesium Malate 625mg, 200 Capsules
Source NaturalsAmazon
Per Serving$0.15
Servings100
Formcapsule
Updated today
BuyAffiliate link
Save 93%
#393
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 today
BuyAffiliate link
Save 92%
#394
California Gold Nutrition L-Theanine AlphaWave 100 mg, 30 Veggie Capsules
$3.17per gram
$9.50 / bottle
California Gold Nutrition L-Theanine AlphaWave 100 mg, 30 Veggie Capsules
California Gold NutritionAmazon
Per Serving$0.32
Servings30
Formcapsule
Updated 2 days ago
BuyAffiliate link
Save 92%
#395
Nutricost L-Theanine 200mg, 30 Count
$3.33per gram
$19.95 / bottle
Nutricost L-Theanine 200mg, 30 Count
NutricostiHerb
Per Serving$0.67
ServingsN/A
Formcapsule
Updated today
iBuyAffiliate link
Save 91%
#396
NOW Foods Magtein Magnesium Veg Capsules, 90 Count
$3.44per gram
$30.99 / bottle
NOW Foods Magtein Magnesium Veg Capsules, 90 Count
NOW FoodsAmazon
Per Serving$0.69
Servings45
Formcapsule
Updated today
BuyAffiliate link
Save 91%
#397
MegaFood Relax + Calm Magnesium Complex Soft Chews, 30 Count
$3.73per gram
$13.99 / bottle
MegaFood Relax + Calm Magnesium Complex Soft Chews, 30 Count
MegaFoodAmazon
Per Serving$0.93
Servings15
Formcapsule
Updated today
BuyAffiliate link
Save 91%
#398
MegaFood Relax + Calm Magnesium Soft Chews, Grape, 30 Count
$3.73per gram
$13.99 / bottle
MegaFood Relax + Calm Magnesium Soft Chews, Grape, 30 Count
MegaFoodiHerb
Per Serving$0.93
ServingsN/A
Formcapsule
Updated today
iBuyAffiliate link
Save 91%
#399
Host Defense MycoBenefits Sleep Capsules, 60 Count
$3.74per gram
$22.46 / bottle
Host Defense MycoBenefits Sleep Capsules, 60 Count
Host DefenseAmazon
Per Serving$0.75
Servings30
Formcapsule
Updated today
BuyAffiliate link
Save 91%
#400
Host Defense MycoBenefits Mood Capsules, 60 Count
$3.74per gram
$22.46 / bottle
Host Defense MycoBenefits Mood Capsules, 60 Count
Host DefenseAmazon
Per Serving$0.75
Servings30
Formcapsule
Updated today
BuyAffiliate link
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