BioStacks
Pure Encapsulations

BCAA Capsules

2 Capsules · 45 servings · $0.62/serving

iHerbAmazon

Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.

Best for

Muscle

Ingredients (4)

L-Leucine

30%

Dose

600 mg

Target

2000–5000 mg

Form

—

Branched Chain Amino Acids

24%

Dose

1200 mg

Target

5000–10000 mg

Form

—

L-Valine

20%

Dose

300 mg

Target

1500–4000 mg

Form

—

L-Isoleucine

20%

Dose

300 mg

Target

1500–4000 mg

Form

—

Other Ingredients (1)

Capsule ShellCapsule

Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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