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Cheapest Amino Acids on iHerb

Ranked by real cost per 100 mg of Amino Acids — cheapest value first.

Prices updated Jul 25, 2026 · 21 products · Prices in USD

The priciest option here costs about 6,230.5× more per 100 mg of Amino Acids than the best-value pick Ageless Foundation Laboratories. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Ageless Foundation Laboratories, UltraMax Gold, Advanced Rejuvenation Formula with Alphatrophin, Valencia Orange, 22 Packets, 0.61 oz (17.4 g) Each
Ageless Foundation Laboratories, UltraMax Gold, Advanced Rejuvenation Formula with Alphatrophin, Valencia Orange, 22 Packets, 0.61 oz (17.4 g) Each
Ageless Foundation Laboratories
7,777 mg2254.990.032View on iHerb →
2
Con-Cret, Muscle Recovery , 90 Capsules
Con-Cret, Muscle Recovery , 90 Capsules
Con-Cret
900 mg3022.990.085View on iHerb →
3
BrainMD, Omni Protein, Plant-Based Protein Powder, Vanilla, 2.38 lbs (1,080 g)
BrainMD, Omni Protein, Plant-Based Protein Powder, Vanilla, 2.38 lbs (1,080 g)
BrainMD
500 mg13059.950.092View on iHerb →
4
NOW Foods, Sports, Men's Active Sports Multi, 90 Softgels
NOW Foods, Sports, Men's Active Sports Multi, 90 Softgels
NOW Foods
175 mg309.960.190View on iHerb →
5
Havasu Nutrition, L-Arginine, 60 Capsules
Havasu Nutrition, L-Arginine, 60 Capsules
Havasu Nutrition
400 mg3024.990.208View on iHerb →
6
Rainbow Light, Complete B-Complex+™, 90 Tablets
Rainbow Light, Complete B-Complex+™, 90 Tablets
Rainbow Light
300 mg3025.490.283View on iHerb →
7
NaturesPlus, Source of Life, Gold Chewables, Delicious Tropical Fruit Flavor, 90 Tablets
NaturesPlus, Source of Life, Gold Chewables, Delicious Tropical Fruit Flavor, 90 Tablets
NaturesPlus
510 mg3056.910.372View on iHerb →
8
BrainMD, Omni Protein, Plant-Based Protein Powder, Chocolate, 2.38 lbs (1,080 g)
BrainMD, Omni Protein, Plant-Based Protein Powder, Chocolate, 2.38 lbs (1,080 g)
BrainMD
500 mg3059.950.400View on iHerb →
9
NaturesPlus, Source of Life®, Gold, The Ultimate Multivitamin Supplement, 90 Capsules
NaturesPlus, Source of Life®, Gold, The Ultimate Multivitamin Supplement, 90 Capsules
NaturesPlus
510 mg1029.710.583View on iHerb →
10
NaturesPlus, Source of Life, Gold® Liquid, Tropical Fruit, 8 fl oz (240 ml)
NaturesPlus, Source of Life, Gold® Liquid, Tropical Fruit, 8 fl oz (240 ml)
NaturesPlus
200 mcg818.661.17View on iHerb →
11
EFX Sports, AminoZorb® Elite 21, Watermelon, 13.76 oz (390 g)
EFX Sports, AminoZorb® Elite 21, Watermelon, 13.76 oz (390 g)
EFX Sports
25 mg3034.994.67View on iHerb →
12
EFX Sports, AminoZorb® Elite 21, Orange Splash, 13.76 oz (390 g)
EFX Sports, AminoZorb® Elite 21, Orange Splash, 13.76 oz (390 g)
EFX Sports
25 mg3034.994.67View on iHerb →
13
EFX Sports, AminoZorb® Elite 21, Pink Bubblegum, 13.76 oz (390 g)
EFX Sports, AminoZorb® Elite 21, Pink Bubblegum, 13.76 oz (390 g)
EFX Sports
25 mg3034.994.67View on iHerb →
14
EFX Sports, AminoZorb® Elite 21, Sour Peach, 13.76 oz (390 g)
EFX Sports, AminoZorb® Elite 21, Sour Peach, 13.76 oz (390 g)
EFX Sports
25 mg3034.994.67View on iHerb →
15
MusclePharm, Pro Series Clear-ISO, Protein Powder Drink Mix, Cherry Slush, 1.14 lbs (520 mg)
MusclePharm, Pro Series Clear-ISO, Protein Powder Drink Mix, Cherry Slush, 1.14 lbs (520 mg)
MusclePharm
20 g2039.9910.00View on iHerb →
16
MusclePharm, Pro Series Clear-ISO, Protein Powder Drink Mix, Sour Peach Rings, 1.14 lbs (520 mg)
MusclePharm, Pro Series Clear-ISO, Protein Powder Drink Mix, Sour Peach Rings, 1.14 lbs (520 mg)
MusclePharm
20 g2039.9910.00View on iHerb →
17
Tropical Oasis, Premium Multi-Vitamin Mineral, For Adults, 16 fl oz (480 ml)
Tropical Oasis, Premium Multi-Vitamin Mineral, For Adults, 16 fl oz (480 ml)
Tropical Oasis
10 mg3232.3210.10View on iHerb →
18
NOW Foods, AAKG 2200, 180 Veg Capsules (550 mg per Capsule)
NOW Foods, AAKG 2200, 180 Veg Capsules (550 mg per Capsule)
NOW Foods
2 g4524.4924.74View on iHerb →
19
NutraBio, Extreme Nitric Stack, Kiwi Strawberry, 1.38 lb (624 g)
NutraBio, Extreme Nitric Stack, Kiwi Strawberry, 1.38 lb (624 g)
NutraBio
4 g3044.9942.85View on iHerb →
20
EVLution Nutrition, ElectroCarb™, Blue Raspberry, 31.75 oz (900 g)
EVLution Nutrition, ElectroCarb™, Blue Raspberry, 31.75 oz (900 g)
EVLution Nutrition
1 g3013.4544.83View on iHerb →
21
EVLution Nutrition, ElectroCarb™, Blue Raspberry, 1.1 oz (30 g)
EVLution Nutrition, ElectroCarb™, Blue Raspberry, 1.1 oz (30 g)
EVLution Nutrition
1 g12.00200.00View on iHerb →

How we rank Amino Acids

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.