Supplement Ratings

iHerb picks

Best Magnesium on iHerb

Skip hours of label reading. Every pick below is sold on iHerb and passed our label check with 60+ points, so whatever you choose is worth taking, and you see today's price before you click.

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AllAshwagandha & AdaptogensB VitaminsBiotinCalciumCollagenCoQ10CreatineGreens & SuperfoodsIronMagnesiumMelatonin & SleepMultivitaminsOmega-3 & Fish OilPre-WorkoutProbioticsProtein SupplementsTurmeric & CurcuminVitamin CVitamin DZinc
Top ratedBest value

341 picks in magnesium, highest score first

337Krebs Magnesium-Potassium Chelates62/100Enzymatic TherapyKrebs Magnesium-Potassium Chelatestablet · 30 servings · $0.57/servingBuy on iHerb · $16.99
338Albion Chelated Magnesium 133 mg61/100Swanson UltraAlbion Chelated Magnesium 133 mgcapsule · 30 servings · $0.37/servingBuy on iHerb · $11.09
339Chelated Magnesium 133 mg61/100SwansonChelated Magnesium 133 mgcapsule · 30 servings · $0.37/servingBuy on iHerb · $11.09
340Magnesium Ascorbate 1000 mg61/100Source NaturalsMagnesium Ascorbate 1000 mgtablet · 120 servings · $0.18/servingBuy on iHerb · $22.09
341Magnesium Chelate 100 mg60/100Source NaturalsMagnesium Chelate 100 mgtablet · 30 servings · $0.29/servingBuy on iHerb · $8.71

Scores rate what's on the label (dosage transparency, cleanliness, ingredient profile), not clinical results. Prices come from the iHerb catalog feed and can change at checkout. See the full Best Magnesium 2026 ranking.