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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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Supplement Type

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

Retailer

AmazonBulkSupplementsiHerbSwanson Vitamins

Brand

21st CenturyABEALLMAXAdvanced ClinicalsAgeless Foundation Laboratories

Form

capsulecapsulesgummyliquidlozengepowdersoftgeltablet

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Best Deal
#1
Magtein Magnesium L-Threonate
$7.48per gram
$34.99 / bottle
Magtein Magnesium L-Threonate
NOW FoodsSwanson Vitamins2 options · 2 retailers
Per Serving$1.17
Servings30
Formcapsule
Updated today
SBuyAffiliate link

All options (sorted by value):

S
Swanson Vitamins30 ctMagtein Magnesium L-Threonate
$34.99Buy
i
iHerb30 ctNOW Foods Magtein, 90 Veg Capsules
$35.07Buy
#2
Swanson Magnesium L-Threonate (Magtein)
$7.50per gram
$35.29 / bottle
Swanson Magnesium L-Threonate (Magtein)
SwansonSwanson Vitamins
Per Serving$0.39
Servings90
Formcapsule
Updated today
SBuyAffiliate link

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