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

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AmazonBulkSupplementsiHerbSwanson Vitamins

Brand

21st CenturyABEALLMAXAdvanced ClinicalsAgeless Foundation Laboratories

Form

capsulecapsulesgummyliquidlozengepowdersoftgeltablet

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Best Deal
#1
Sports Research Magnesium L-Threonate Capsules 2000mg, 90 Count
$6.93per gram
$29.95 / bottle
Sports Research Magnesium L-Threonate Capsules 2000mg, 90 Count
Sports ResearchAmazon3 options · 2 retailers
Per Serving$1.00
Servings30
Formcapsule
Updated today
BuyAffiliate link

All options (sorted by value):

Amazon30 ctSports Research Magnesium L-Threonate Capsules 2000mg, 90 Count
$29.95Buy
i
iHerbSports Research Magtein Magnesium L-Threonate, 90 Veggie Capsules
$29.95Buy
i
Sports Research, Sports Research, Magtein®, Magnesium L-Threonate, Veggie Capsules (666 mg per Capsule), 180 count
$59.97Buy
#2
Life Extension Neuro-Mag Magnesium L-Threonate, 150 Vegetarian Capsules
$7.08per gram
$50.95 / bottle
Life Extension Neuro-Mag Magnesium L-Threonate, 150 Vegetarian Capsules
Life ExtensionAmazon4 options · 2 retailers
Per Serving$1.02
Servings50
Formcapsule
Updated today
BuyAffiliate link

All options (sorted by value):

Amazon50 ctLife Extension Neuro-Mag Magnesium L-Threonate, 150 Vegetarian Capsules
$50.95Buy
Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules
$30.79Buy
i
iHerbLife Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules
$30.79Buy
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