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Cheapest L-Isoleucine on iHerb

Ranked by real cost per 1,000 mg of L-Isoleucine — cheapest value first.

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

The priciest option here costs about 5.9× more per 1,000 mg of L-Isoleucine than the best-value pick Gaspari Nutrition. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 1,000 mg
1
Gaspari Nutrition, Aminolast®, Recovery & Endurance BCAA Superfuel, Fruit Punch, 14.8 oz (420 g)
Gaspari Nutrition, Aminolast®, Recovery & Endurance BCAA Superfuel, Fruit Punch, 14.8 oz (420 g)
Gaspari Nutrition
1,250 mg302.000.053View on iHerb →
2
EVLution Nutrition, BCAA5000®, Furious Grape, 9.1 oz (258 g)
EVLution Nutrition, BCAA5000®, Furious Grape, 9.1 oz (258 g)
EVLution Nutrition
1,250 mg302.000.053View on iHerb →
3
EVLution Nutrition, BCAA5000®, Unflavored, 10.58 oz (300 g)
EVLution Nutrition, BCAA5000®, Unflavored, 10.58 oz (300 g)
EVLution Nutrition
1,250 mg609.420.126View on iHerb →
4
Nutricost, L-Isoleucine, 240 Capsules (500 mg per Capsule)
Nutricost, L-Isoleucine, 240 Capsules (500 mg per Capsule)
Nutricost
2,000 mg6015.950.133View on iHerb →
5
Nutricost, Performance, BCAA, Unflavored, 2 lb (900 g)
Nutricost, Performance, BCAA, Unflavored, 2 lb (900 g)
Nutricost
1,500 mg15037.950.169View on iHerb →
6
Nutricost, Performance, BCAA, Unflavored, 1.2 lb (540 g)
Nutricost, Performance, BCAA, Unflavored, 1.2 lb (540 g)
Nutricost
1,500 mg9023.950.177View on iHerb →
7
Nutricost, Performance, BCAA, Unflavored, 12.9 oz (360 g)
Nutricost, Performance, BCAA, Unflavored, 12.9 oz (360 g)
Nutricost
1,500 mg6019.950.222View on iHerb →
8
fitcode, BCAA, Blue Raz, 8.5 oz (240 g)
fitcode, BCAA, Blue Raz, 8.5 oz (240 g)
fitcode
1,250 mg308.600.229View on iHerb →
9
Nutricost, Performance, BCAA, Grape, 2.5 lb (1,164 g)
Nutricost, Performance, BCAA, Grape, 2.5 lb (1,164 g)
Nutricost
1,500 mg12047.950.266View on iHerb →
10
Nutricost, Performance, BCAA, Watermelon, 2.5 lb (1,116 g)
Nutricost, Performance, BCAA, Watermelon, 2.5 lb (1,116 g)
Nutricost
1,500 mg12047.950.266View on iHerb →
11
Nutricost, Performance, BCAA, Green Apple, 2.4 lb (1,080 g)
Nutricost, Performance, BCAA, Green Apple, 2.4 lb (1,080 g)
Nutricost
1,500 mg12047.950.266View on iHerb →
12
Nutricost, Performance, BCAA, Watermelon, 1.2 lb (540 g)
Nutricost, Performance, BCAA, Watermelon, 1.2 lb (540 g)
Nutricost
1,500 mg6024.950.277View on iHerb →
13
Nutricost, Performance, BCAA, Raspberry Lemonade, 2.2 lb (990 g)
Nutricost, Performance, BCAA, Raspberry Lemonade, 2.2 lb (990 g)
Nutricost
1,500 mg9039.950.296View on iHerb →
14
Nutricost, Performance, BCAA, Watermelon, 1.8 lb (810 g)
Nutricost, Performance, BCAA, Watermelon, 1.8 lb (810 g)
Nutricost
1,500 mg9039.950.296View on iHerb →
15
Nutricost, Performance, BCAA, Pineapple, 1.6 lb (738 g)
Nutricost, Performance, BCAA, Pineapple, 1.6 lb (738 g)
Nutricost
1,500 mg9039.950.296View on iHerb →
16
Nutricost, Performance, BCAA, Grape, 2 lb (900 g)
Nutricost, Performance, BCAA, Grape, 2 lb (900 g)
Nutricost
1,500 mg9039.950.296View on iHerb →
17
Nutricost, Performance, BCAA, Strawberry Kiwi, 1.8 lb (810 g)
Nutricost, Performance, BCAA, Strawberry Kiwi, 1.8 lb (810 g)
Nutricost
1,500 mg9039.950.296View on iHerb →
18
XTEND, 7G BCAA, Strawberry Kiwi Splash, 2.58 lb (1.17 kg)
XTEND, 7G BCAA, Strawberry Kiwi Splash, 2.58 lb (1.17 kg)
XTEND
1,750 mg9048.740.310View on iHerb →
19
Nutricost, Performance, BCAA, Unflavored, 6.3 oz (180 g)
Nutricost, Performance, BCAA, Unflavored, 6.3 oz (180 g)
Nutricost
1,500 mg3013.950.310View on iHerb →
20
Nutricost, Performance, BCAA, Raspberry Lemonade, 1.5 lb (660 g)
Nutricost, Performance, BCAA, Raspberry Lemonade, 1.5 lb (660 g)
Nutricost
1,500 mg6027.950.311View on iHerb →
21
Nutricost, Performance, BCAA, Pineapple, 1.1 lb (492 g)
Nutricost, Performance, BCAA, Pineapple, 1.1 lb (492 g)
Nutricost
1,500 mg6027.950.311View on iHerb →
22
Nutricost, Performance, BCAA, Strawberry Kiwi, 1.2 lb (540 g)
Nutricost, Performance, BCAA, Strawberry Kiwi, 1.2 lb (540 g)
Nutricost
1,500 mg6027.950.311View on iHerb →
23
Nutricost, Performance, BCAA, Green Apple , 1.2 lb (540 g)
Nutricost, Performance, BCAA, Green Apple , 1.2 lb (540 g)
Nutricost
1,500 mg6027.950.311View on iHerb →
24
Nutricost, Performance, BCAA, Grape, 1.3 lb (600 g)
Nutricost, Performance, BCAA, Grape, 1.3 lb (600 g)
Nutricost
1,500 mg6027.950.311View on iHerb →
25
Nutricost, Performance, BCAA, Orange Mango, 17.1 oz (480 g)
Nutricost, Performance, BCAA, Orange Mango, 17.1 oz (480 g)
Nutricost
1,500 mg6027.950.311View on iHerb →

How we rank L-Isoleucine

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.