BioStacks
Pure Encapsulations

Essential Aminos

1 Capsule · 180 servings · $0.29/serving

Under-dosed

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

Ingredients (9)

L-Methionine

35%

Dose

70 mg

Target

200–1000 mg

Form

L-Phenylalanine

23%

Dose

115 mg

Target

500–1500 mg

Form

L-Lysine HCl

11%

Dose

110 mg

Target

1000–3000 mg

Form

L-Threonine

14%

Dose

68 mg

Target

500–4000 mg

Form

L-Leucine

7%

Dose

138 mg

Target

2000–5000 mg

Form

Other Ingredients (2)

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

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.