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

12457D-5,00064/100Thorne ResearchD-5,000capsule · 30 servings · $0.67/servingBuy on iHerb · $20.00
12458D-10,00064/100Thorne ResearchD-10,000capsule · 30 servings · $0.89/servingBuy on iHerb · $26.78
12459Potassium Citrate64/100Thorne ResearchPotassium Citratecapsule · 30 servings · $0.57/servingBuy on iHerb · $17.00
12460Liquid Vitamin B-12 With Natural Flavors64/100Nature's AnswerLiquid Vitamin B-12 With Natural Flavorsliquid · 75 servings · $0.20/servingBuy on iHerb · $14.99
12461Liquid Fiber64/100Nature's AnswerLiquid Fiberliquid · 16 servings · $1.17/servingBuy on iHerb · $18.74
12462Isopoure Low Carb Dutch Chocolate64/100The Isopure CompanyIsopoure Low Carb Dutch Chocolatepowder · 14 servings · $2.44/servingBuy on iHerb · $34.11
12463Super Mass Gainer Gourmet Vanilla64/100DymatizeSuper Mass Gainer Gourmet Vanillapowder · 8 servings · $5.75/servingBuy on iHerb · $45.99
12464Copper 2 mg64/100Swanson Premium BrandCopper 2 mgtablet · 30 servings · $0.37/servingBuy on iHerb · $11.09
12465Potassium (Gluconate) 99 mg64/100Swanson Premium BrandPotassium (Gluconate) 99 mgcapsule · 30 servings · $0.68/servingBuy on iHerb · $20.39
12466B-12 Sublingual Liquid64/100Swanson Premium BrandB-12 Sublingual Liquidliquid · 73 servings · $0.22/servingBuy on iHerb · $16.09
12467Zinc (Citrate) 30 mg64/100Swanson Premium BrandZinc (Citrate) 30 mgcapsule · 30 servings · $0.28/servingBuy on iHerb · $8.46
12468Magnesium (Lactate) 84 mg64/100Swanson Premium BrandMagnesium (Lactate) 84 mgcapsule · 30 servings · $0.81/servingBuy on iHerb · $24.19
12469Niacin 500 mg64/100Swanson Premium BrandNiacin 500 mgcapsule · 30 servings · $0.64/servingBuy on iHerb · $19.29
12470Niacinamide 500 mg64/100Swanson Premium BrandNiacinamide 500 mgcapsule · 30 servings · $0.58/servingBuy on iHerb · $17.49
12471Melatonin 3 mg Time Release64/100NatrolMelatonin 3 mg Time Releasetablet · 100 servings · $0.11/servingBuy on iHerb · $10.83
12472Sleep Cool & Calm64/100EstrovenSleep Cool & Calmtablet · 30 servings · $0.52/servingBuy on iHerb · $15.69
12473Tendon Support Formula With Tendofit64/100Swanson UltraTendon Support Formula With Tendofitcapsule · 30 servings · $0.58/servingBuy on iHerb · $17.42
12474Albion Chelated Zinc 30 mg64/100Swanson UltraAlbion Chelated Zinc 30 mgcapsule · 30 servings · $0.37/servingBuy on iHerb · $11.09
12475Methylcobalamin 5 mg64/100Swanson UltraMethylcobalamin 5 mgtablet · 30 servings · $0.72/servingBuy on iHerb · $21.59
12476Methylcobalamin 2.5 mg64/100Swanson UltraMethylcobalamin 2.5 mgtablet · 30 servings · $0.43/servingBuy on iHerb · $12.79
12477Supplemelts Vitamin B-12 Natural Berry Flavor64/100Swanson UltraSupplemelts Vitamin B-12 Natural Berry Flavorchewable · 30 servings · $0.52/servingBuy on iHerb · $15.69
12478B-12 5,000 mcg64/100SwansonB-12 5,000 mcgtablet · 30 servings · $0.72/servingBuy on iHerb · $21.59
12479Acetyl L-Carnitine & Alpha-Lipoic Acid64/100Source NaturalsAcetyl L-Carnitine & Alpha-Lipoic Acidtablet · 30 servings · $1.58/servingBuy on iHerb · $47.34
12480Organic Gripe Water64/100ChildLife EssentialsOrganic Gripe Waterliquid · 15 servings · $0.80/servingBuy on iHerb · $11.96

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.