Supplement
L-Lysine
An amino acid supplement some people take to help shorten cold sore and shingles outbreaks.
📊 How it ranks (our editor score) — 63/100Tap to see the breakdown
🌱 What it is
Lysine is an essential amino acid the body cannot make on its own and must get from food or supplements.
✨ Why it's good for you
- May shorten the length of cold sore outbreaks
- Simple to add to a daily routine
- Generally well tolerated at normal doses
🥄 How to use it
Take 500-1,000 mg daily as a preventive measure, increasing to 1,000 mg two to three times a day at the first sign of a cold sore or shingles flare, until the outbreak clears.
How much: 500-1,000 mg daily for prevention; up to 3,000 mg daily in divided doses during an active outbreak, or as directed on the product label.
Why it works: Lysine competes with the amino acid arginine, which the herpes virus needs to replicate, so adequate lysine intake may help limit outbreaks — though evidence is mixed and it should not replace antiviral treatment when needed.
⚠️ Cautions
- High doses over a long period may raise cholesterol in some people — check with a doctor if you have heart or kidney concerns.
- Not a substitute for antiviral medication for shingles; see a doctor promptly for a shingles outbreak, especially near the eyes.
📚 What others say
- Natural Remedies Encyclopedia (7th ed.)
🕊️ A word of encouragement
Your body was wonderfully made to heal — give it rest, good food, and a little patience, and trust the One who designed it.
💬 Ask Remy about L-Lysine
📚 Resource confidence
Based on mentions in health references
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