Amino Acid
L-Lysine
Also known as: Lysine, L-Lysine HCl, Lysine Monohydrochloride
B
Evidence
Essential amino acid important for protein synthesis, collagen formation, calcium absorption, and immune function, particularly noted for antiviral properties.
Primary uses
- Cold sore prevention
- Protein synthesis
- Collagen support
- Calcium absorption
How it works
- Competes with arginine for viral replication
- Essential for collagen synthesis
- Supports carnitine production
Dosage
- Typical range
- 500-3000 mg daily
- Timing
- Between meals or with meals
- With food
- Either way
- Duration
- Safe for long-term use
- Special populations
- Those prone to cold sores
Forms
- Free form· 95/100
- L-lysine monohydrochloride· 90/100
- L-lysine HCl· 90/100
Safety
Common side effects
- GI upset at high doses
Evidence notes
Good evidence for cold sore prevention, protein synthesis
Grade B: Some human trials support key claims; further confirmation needed.
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