Supplement Ratings

iHerb picks

Best Amino Acids 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
  • Today's price and cost per serving
  • One click to order on iHerb

We may earn a commission when you buy through these links, at no extra cost to you. It never changes a score or a ranking. See how we score

AllAmino AcidsAntioxidants & LongevityAshwagandha & AdaptogensB VitaminsBiotinBlood Sugar SupportBrain & NootropicsCalciumCollagenCoQ10CreatineDigestive HealthEye HealthGreens & SuperfoodsHeart HealthHerbs & BotanicalsHormone & Sexual HealthImmune SupportIronJoint SupportLiver & DetoxMagnesiumMelatonin & SleepMinerals & ElectrolytesMultivitaminsMushroomsOmega-3 & Fish OilPre-WorkoutProbioticsProtein SupplementsTurmeric & CurcuminUrinary HealthVitamin CVitamin DVitamins A, E & KWeight ManagementZinc
Top ratedBest value

Highest score first

625Leanshots L-Carnitine 3000 Green Apple67/100NutraBio PerformanceLeanshots L-Carnitine 3000 Green Appleliquid · 31 servings · $0.97/servingBuy on iHerb · $29.99
626Leanshots L-Carnitine 3000 Peach Rings67/100NutraBio PerformanceLeanshots L-Carnitine 3000 Peach Ringsliquid · 31 servings · $0.97/servingBuy on iHerb · $29.99
627NAC+ 600 mg67/100KALNAC+ 600 mgtablet · 60 servings · $0.30/servingBuy on iHerb · $18.01
628TMG Liquid Natural Raspberry Flavor67/100KirkmanTMG Liquid Natural Raspberry Flavorliquid · 94 servings · $0.49/servingBuy on iHerb · $46.20
629Amino Complex Berry Flavor67/100Thorne ResearchAmino Complex Berry Flavorpowder · 30 servings · $1.73/servingBuy on iHerb · $52.00
630Amino Fuel67/100TwinlabAmino Fuelliquid · 21 servings · $2.01/servingBuy on iHerb · $42.23
631L-Arginine 1000 mg66/10021st CenturyL-Arginine 1000 mgtablet · 30 servings · $0.43/servingBuy on iHerb · $12.99
632Amino Complete66/100NOW SportsAmino Completecapsule · 30 servings · $0.42/servingBuy on iHerb · $12.61
633Chewable GABA Natural Orange Flavor66/100NOWChewable GABA Natural Orange Flavortablet · 45 servings · $0.33/servingBuy on iHerb · $14.69
6345-HTP 100 mg Wild Berry66/100Natrol5-HTP 100 mg Wild Berrytablet · 30 servings · $0.55/servingBuy on iHerb · $16.37
635Tri-Pep Watermelon66/100Metabolic NutritionTri-Pep Watermelonpowder · 40 servings · $0.87/servingBuy on iHerb · $34.99
636Tri-Pep Lemonade66/100Metabolic NutritionTri-Pep Lemonadepowder · 40 servings · $0.87/servingBuy on iHerb · $34.99
637Tri-Pep Unflavored66/100Metabolic NutritionTri-Pep Unflavoredpowder · 40 servings · $0.87/servingBuy on iHerb · $34.99
638GABA Calm Peppermint Flavor66/100Source NaturalsGABA Calm Peppermint Flavorlozenge · 30 servings · $0.34/servingBuy on iHerb · $10.15
639Alpha EAA New York Punch66/100NutraBioAlpha EAA New York Punchpowder · 30 servings · $1.50/servingBuy on iHerb · $44.99
640SAMe 20066/100Doctor's BestSAMe 200tablet · 60 servings · $0.57/servingBuy on iHerb · $33.99
641GABA Calm66/100Source Naturals Serene ScienceGABA Calmlozenge · 120 servings · $0.16/servingBuy on iHerb · $19.25
642Suntheanine L-Theanine 100 mg66/100Natural Factors Stress-RelaxSuntheanine L-Theanine 100 mgtablet · 30 servings · $0.65/servingBuy on iHerb · $19.44
643GABA Calm Orange Flavor65/100Source NaturalsGABA Calm Orange Flavorlozenge · 30 servings · $0.64/servingBuy on iHerb · $19.25
644L-Tryptophan 500 mg65/100Source NaturalsL-Tryptophan 500 mgcapsule · 20 servings · $0.61/servingBuy on iHerb · $12.25
645Alpha EAA Grape Berry Crush65/100NutraBioAlpha EAA Grape Berry Crushpowder · 30 servings · $1.50/servingBuy on iHerb · $44.99
646GABA 500 mg65/100SolgarGABA 500 mgcapsule · 30 servings · $0.39/servingBuy on iHerb · $11.84
647Chewable GABA65/100NOWChewable GABAchewable · 45 servings · $0.33/servingBuy on iHerb · $14.69
648Animal Juiced Aminos Strawberry Limeade Flavor65/100AnimalAnimal Juiced Aminos Strawberry Limeade Flavorpowder · 30 servings · $1.13/servingBuy on iHerb · $33.75

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 Amino Acids ranking.