Check a label

BCAA supplements

BCAAs are leucine, isoleucine and valine: three of the nine essential amino acids. We check the leucine in one serving against the 2–3 g studies use in a dose. Keep in mind that the ISSN rates BCAAs on their own as limited or mixed evidence for building muscle and advises all nine essential amino acids; see the EAA products. Commission never changes the order.

Powders (20)

ProductLeucine in one servingOne serving vs research doseTo reach the research doseLabel's daily maximumEssential amino acids (of 9)Proof
ALLMAX Aminocore BCAA · label 23 Feb 20253.68 g in 1 scoop (10.5 g)Effective doseOne serving3.68 g (1 serving)3 of 9Label claim only
BulkSupplements.com BCAA 2:1:1 · label 22 Mar 20243 g in one servingEffective doseOne serving3 g (1 serving)3 of 9Label claim only
MusclePharm Essentials BCAA · label 19 May 20223 g in 1 scoop (6.5 g)Effective doseOne serving3 g (1 serving)3 of 9Label claim only
MuscleTech Amino Build · label 22 Jan 20224 g in 1 scoop (16 g)Effective doseOne serving4 g (1 serving)3 of 9Label claim only
Transparent Labs BCAA Glutamine · label 9 Oct 20264 g in 1 scoop (16.5 g)Effective doseOne serving12 g (3 servings)3 of 9Label claim only
XTEND The Original BCAA · label 25 Sep 20233.5 g in 1 scoop (14 g)Effective doseOne serving14 g (4 servings)3 of 9Label claim only
California Gold Nutrition Sport BCAA · label 14 Dec 20232.5 g in 1 scoop (5 g)Effective doseOne serving2.5 g (1 serving)3 of 9Label claim only
Doctor's Best Instantized BCAA Powder · label 21 Jul 20222.5 g in 1 scoop (5 g)Effective doseOne serving2.5 g (1 serving)3 of 9Label claim only
EVLution Nutrition BCAA 5000 · label 25 Mar 20252.5 g in 1 scoop (5 g)Effective doseOne serving2.5 g (1 serving)3 of 9Label claim only
EVLution Nutrition BCAA Energy · label 24 Jan 20242.5 gEffective doseOne serving3.75 g (1.5 servings)3 of 9Label claim only
Kaged BCAA 2:1:1 · label 9 Oct 20262.5 g in 1 scoop (5.5 g)Effective doseOne servingNo daily total given3 of 9Label claim only
Lake Avenue Nutrition Instantized BCAA · label 24 Oct 20242.5 g in 1 scoop (5 g)Effective doseOne serving2.5 g (1 serving)3 of 9Label claim only
NutraBio BCAA 5000 · label 24 Apr 20252.5 g in 1 scoop (6.97 g)Effective doseOne serving5 g (2 servings)3 of 9Label claim only
Clean Machine Clean BCAA · label 22 Mar 20242 g in 1 scoop (7.2 g)Effective doseOne serving2 g (1 serving)3 of 9Label claim only
ALLMAX Essentials BCAA · label 25 Mar 2025Not stated in 1 scoop (5 g)Hidden in a blend—No daily total given3 of 9 · amounts hiddenLabel claim only
BSN Amino X · label 23 May 2024Not stated in 1 scoop (14.5 g)Hidden in a blend—No daily total given3 of 9 · amounts hiddenLabel claim only
InnoSupps Natural BCAA · label 22 Feb 2024Not stated in 1 scoop (14.4 g)Hidden in a blend—No daily total given9 of 9 · amounts hiddenLabel claim only
MTN OPS BCAA · label 21 Dec 2024Not stated in 1 scoop (13 g)Hidden in a blend—Not given3 of 9 · amounts hiddenLabel claim only
NOW Sports BCAA Big 6 · label 24 Oct 2024Not stated in 1 scoop (19 g)Hidden in a blend—No daily total given3 of 9 · amounts hiddenLabel claim only
Nutricost BCAA+ · label 24 Oct 2024Not stated in 1 scoop (13 g)Hidden in a blend—No daily total given3 of 9 · amounts hiddenLabel claim only

Capsules (3)

ProductLeucine in one servingOne serving vs research doseTo reach the research doseLabel's daily maximumEssential amino acids (of 9)Proof
Swanson BCAA · label 22 Feb 20241.02 g in 3 capsulesBelow research dose6 capsules reach 2 g (more than directed)1.02 g (3 capsules)3 of 9Label claim only
Nutricost BCAA 1000 mg · label 22 Feb 2024500 mg in 2 capsulesBelow research dose8 capsules reach 2 g (more than directed)500 mg (2 capsules)3 of 9Label claim only
Universal Nutrition BCAA Pro · label 24 Oct 2022500 mg in 2 capsulesBelow research dose8 capsules reach 2 g (more than directed)1 g (4 capsules)3 of 9Label claim only

23 products. The verdict judges one serving, as the label gives it. Read the l-leucine guide for the studies behind the dose. "Proof" is a published independent lab test, a certifier listing we read on the certifier's own site (usually for listed lots only), or "Label claim only" when we found neither.