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L-Lysine 500 mg

1 Capsule · 100 servings · $0.12/serving

iHerbAmazon

Best for

Energy

Ingredients (3)

Vitamin B6

34%

Dose

8.5 mg

Target

25–100 mg

Form

Premium

L-Lysine

50%

Dose

500 mg

Target

1000–3000 mg

Form

Premium

Chloride

120 mg

Trace amount — not scored

Other Ingredients (3)

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

Microcrystalline CelluloseBinder

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

How to Take It

Best taken in the morning

Many people prefer B-vitamins earlier in the day; take with food to avoid nausea.

With food

Lysine does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.

On the label

Adults take one (1) capsule daily with or without food, or as directed by your health care provider.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$12.14

$10$20

Near the median of 53 lysine supplements

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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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