Supplement Ratings

iHerb picks

Best supplements 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

13,437 picks across every category, highest score first

601Magnesium Citrate 400 mg85/100NOWMagnesium Citrate 400 mgcapsule · 20 servings · $0.37/servingBuy on iHerb · $7.34
602Teeth & Gums Vitamins85/100CodeageTeeth & Gums Vitaminscapsule · 30 servings · $1.17/servingBuy on iHerb · $34.99
603Iodine Liquid Drops Unflavored85/100NutraChampsIodine Liquid Drops Unflavoredliquid · 590 servings · $0.04/servingBuy on iHerb · $20.95
604Enhanced Absorption Calcium Magnesium 2:1 Ratio85/100SolarayEnhanced Absorption Calcium Magnesium 2:1 Ratiocapsule · 22 servings · $0.46/servingBuy on iHerb · $10.09
605Enhanced Absorption Calcium Magnesium 2:1 Ratio with Vitamin D-285/100SolarayEnhanced Absorption Calcium Magnesium 2:1 Ratio with Vitamin D-2capsule · 22 servings · $0.57/servingBuy on iHerb · $12.48
606High Absorption Magnesium Glycinate 350 mg Unflavored85/100SolarayHigh Absorption Magnesium Glycinate 350 mg Unflavoredpowder · 50 servings · $0.54/servingBuy on iHerb · $26.99
607Prosperi-T Thyroid Support85/100LifeSeasonsProsperi-T Thyroid Supportcapsule · 30 servings · $1.36/servingBuy on iHerb · $40.94
608Vitamin D3 Drops For Kids 400 IU85/100Natural FactorsVitamin D3 Drops For Kids 400 IUliquid · 500 servings · $0.02/servingBuy on iHerb · $11.17
609Vanadyl Sulfate-2085/100OL Olympian Labs Performance Sports NutritionVanadyl Sulfate-20capsule · 250 servings · $0.13/servingBuy on iHerb · $32.26
610Sambucus Immune85/100Nature's WaySambucus Immuneliquid · 24 servings · $1.04/servingBuy on iHerb · $25.07
611Calcium Carbonate85/100NOWCalcium Carbonatepowder · 227 servings · $0.04/servingBuy on iHerb · $9.79
612Vitamin A 10,000 IU85/100Nature's WayVitamin A 10,000 IUsoftgel · 100 servings · $0.06/servingBuy on iHerb · $5.75
613Calcium Citrate Mini-Tabs85/100Rainbow LightCalcium Citrate Mini-Tabstablet · 30 servings · $0.57/servingBuy on iHerb · $16.99
614Thyroid Health85/100Emerald LaboratoriesThyroid Healthcapsule · 30 servings · $1.42/servingBuy on iHerb · $42.60
615Natural Vitamin D3 400 IU85/100SolgarNatural Vitamin D3 400 IUsoftgel · 30 servings · $0.23/servingBuy on iHerb · $7.01
616Maximum Strength Magnesium 500 mg85/100Nature's BountyMaximum Strength Magnesium 500 mgtablet · 30 servings · $0.24/servingBuy on iHerb · $7.13
617Super Cordyceps with Maitake D Fraction85/100Mushroom WisdomSuper Cordyceps with Maitake D Fractiontablet · 30 servings · $0.94/servingBuy on iHerb · $28.09
618Super Lion's Mane with Maitake D Fraction85/100Mushroom WisdomSuper Lion's Mane with Maitake D Fractiontablet · 30 servings · $0.91/servingBuy on iHerb · $27.26
619Super Reishi with Maitake D Fraction85/100Mushroom WisdomSuper Reishi with Maitake D Fractiontablet · 30 servings · $0.68/servingBuy on iHerb · $20.44
620Super Royal Agaricus with Maitake D Fraction85/100Mushroom WisdomSuper Royal Agaricus with Maitake D Fractiontablet · 30 servings · $0.80/servingBuy on iHerb · $23.86
621Vitamin A 10,000 IU85/100Natural FactorsVitamin A 10,000 IUsoftgel · 30 servings · $0.24/servingBuy on iHerb · $7.18
622Zinc Chelate 30 Milligrams85/100NutraBioZinc Chelate 30 Milligramscapsule · 120 servings · $0.14/servingBuy on iHerb · $16.99
623Magnesium Oxide Pure Powder85/100NOWMagnesium Oxide Pure Powderpowder · 324 servings · $0.03/servingBuy on iHerb · $10.40
624Vitamin K2 MK-7 (Menaquinone-7)85/100CarlsonVitamin K2 MK-7 (Menaquinone-7)softgel · 30 servings · $0.61/servingBuy on iHerb · $18.28

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.