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.

  • Doses, fillers and hidden blends checked
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Top ratedBest value

13,437 picks across every category, highest score first

16335-HTP 100 mg80/100NOW5-HTP 100 mgcapsule · 30 servings · $0.35/servingBuy on iHerb · $10.40
1634CleanseSmart 1 Morning Formula80/100Renew LifeCleanseSmart 1 Morning Formulacapsule · 30 servings · $1.02/servingBuy on iHerb · $30.68
1635E Fem80/100Nature's PlusE Femcapsule · 30 servings · $1.32/servingBuy on iHerb · $39.67
1636SuperLysine+80/100Quantum HealthSuperLysine+tablet · 30 servings · $0.46/servingBuy on iHerb · $13.65
1637Acidophilus Pearls80/100Enzymatic TherapyAcidophilus Pearlsother · 30 servings · $0.36/servingBuy on iHerb · $10.91
1638L-Tryptophan 500 mg80/100NOWL-Tryptophan 500 mgcapsule · 30 servings · $0.42/servingBuy on iHerb · $12.69
1639Extra Strength TestoJack 20080/100NOWExtra Strength TestoJack 200capsule · 60 servings · $0.49/servingBuy on iHerb · $29.19
1640Acetyl-L Carnitine80/100NOW SportsAcetyl-L Carnitinepowder · 113 servings · $0.16/servingBuy on iHerb · $18.36
1641L-Arginine Powder80/100NOW SportsL-Arginine Powderpowder · 217 servings · $0.22/servingBuy on iHerb · $47.17
1642Branched Chain Amino Acid Powder80/100NOW SportsBranched Chain Amino Acid Powderpowder · 68 servings · $0.43/servingBuy on iHerb · $29.39
1643Ginkgo Biloba 120 mg80/100NOWGinkgo Biloba 120 mgcapsule · 30 servings · $0.73/servingBuy on iHerb · $21.84
1644L-Citrulline80/100NOWL-Citrullinepowder · 75 servings · $0.27/servingBuy on iHerb · $20.20
1645GABA80/100NOWGABApowder · 340 servings · $0.04/servingBuy on iHerb · $12.24
1646L-Glutamine Powder80/100NOW SportsL-Glutamine Powderpowder · 34 servings · $0.36/servingBuy on iHerb · $12.24
1647Glycine80/100NOWGlycinepowder · 454 servings · $0.04/servingBuy on iHerb · $18.37
1648Extra Strength Astaxanthin 10 mg80/100NOWExtra Strength Astaxanthin 10 mgsoftgel · 30 servings · $0.70/servingBuy on iHerb · $20.92
1649L-Lysine80/100NOWL-Lysinepowder · 822 servings · $0.02/servingBuy on iHerb · $15.92
1650Astaxanthin 4 mg80/100NOWAstaxanthin 4 mgsoftgel · 30 servings · $0.58/servingBuy on iHerb · $17.46
1651L-Ornithine80/100NOW SportsL-Ornithinepowder · 227 servings · $0.13/servingBuy on iHerb · $29.39
1652Advanced Therapeutics Lutein Rx-Eye80/100Nature's PlusAdvanced Therapeutics Lutein Rx-Eyecapsule · 20 servings · $1.89/servingBuy on iHerb · $37.78
1653Ginkgo Biloba 60 mg80/100NOWGinkgo Biloba 60 mgcapsule · 30 servings · $0.73/servingBuy on iHerb · $22.04
1654Taurine Powder80/100NOWTaurine Powderpowder · 227 servings · $0.05/servingBuy on iHerb · $11.01
1655L-Tryptophan Powder80/100NOWL-Tryptophan Powderpowder · 57 servings · $0.39/servingBuy on iHerb · $22.03
1656L-Tyrosine80/100NOWL-Tyrosinepowder · 283 servings · $0.06/servingBuy on iHerb · $18.36

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.