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Life Extension

L-Lysine 620 mg

1 Capsule · 100 servings

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What it does

Lysine

Form not confirmedGrade —

Needed for normal protein production and tissue maintenance; benefits from extra lysine depend on nutritional and health context.

Immune
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Ingredients (1)

Other ingredients

Vegetable StearateLubricant

A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant

LeucineFlow Aid

Branched-chain amino acid used as a processing aid

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Lab testing

How to take it

On an empty stomach

On the label

Take one (1) capsule one to three times daily on an empty stomach, or as recommended by a healthcare practitioner.

Price check

$8.10

$0.08 / serving

$10$20

Cheaper than 88% of 53 lysine supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.

Not medical advice. Consult your healthcare professional.

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