Lysine
Solid evidence for cold sore prevention. Not a miracle worker, but genuinely useful for the right person.
Verdict
7/10 Solid
Evidence
Grade B / 100+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
May support the prevention of cold sores and support immune health.
DOES IT WORK?
7/10 Solid. Good pick. Lysine is an essential amino acid with some evidence supporting its role in preventing cold sore outbreaks and potentially supporting immune function. While not a miracle cure, it may offer benefits for certain individuals.
HOW MUCH TO TAKE
1000mg to 3000mg daily, split into multiple doses.
COST
Budget-friendly. $20-35/month for quality brands.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Give it 4-8 weeks for full effects. Patience pays.
SAFETY
Few things to check: kidney problems, pregnancy. Worth mentioning to your doc.
HOW IT FEELS
Most users don't report any noticeable feelings with Lysine supplementation. Some may experience mild gastrointestinal discomfort at higher doses.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
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