BioStacks
GNC

L-Lysine 1000 mg

1 Caplet · 90 servings · $0.20/serving

iHerbAmazon
69 / 100Good

Best for

Immune

Score Breakdown

Formulation
69
Safety
100
Final score
69/100

Ingredients (1)

L-Lysine

100%

Dose

1000 mg

Target

1000–3000 mg

Form

Premium

Other Ingredients (4)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

PolyvinylpyrrolidoneBinder

A synthetic polymer used as a tablet binder and film former

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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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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