This **L-Lysine** delivers 1,000mg per tablet, hitting the bottom of the 1–3g range used in cold-sore research — enough to start supporting reduced herpes simplex (cold sore) recurrence, though the clinical evidence is genuinely mixed. Some trials show fewer, milder outbreaks; others find no real effect, and the positive studies often used 2–3g daily. If cold-sore prevention is your goal, 1,000mg is a reasonable starting point, but you may need 2–3 tablets to match those higher intakes.
Lysine is an essential amino acid your body can't make on its own. But most people already get plenty from a normal diet of meat, fish, and dairy, so supplementing mainly makes sense if you're targeting recurrent cold sores specifically. The tablet uses standard lysine hydrochloride, a well-absorbed form, taken once daily on an empty stomach.
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Ingredients (1)
L-Lysine
100%Dose
1000 mg
Target
1000–3000 mg
Form
Premium
Other Ingredients (1)
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Take it anytime
Take between meals — it competes with arginine for the same transporter.
On an empty stomach
On the label
Suggested use: Adults, take one tablet daily, preferably on an empty stomach.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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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.