NOW Foods L-Lysine 1000mg
by NOW Foods
"250 tablets of L-lysine at 1000mg — essential amino acid for immune function, collagen synthesis, and cold sore prevention"
Overview
NOW Foods L-Lysine provides 1000mg of the essential amino acid L-lysine per tablet. Lysine is best known for its role in preventing and reducing cold sore outbreaks (by competing with arginine, which HSV needs to replicate), but it also supports immune function, collagen synthesis, and calcium absorption. At 250 tablets for under $14, it provides over 8 months of daily supplementation. Lysine is an essential amino acid that must be obtained from diet or supplements.
Key Ingredients
| Ingredient | Amount |
|---|---|
| L-Lysine (as L-Lysine HCl) | 1000 mg |
Pros & Cons
What We Like
- 250 tablets (8+ month supply)
- Under $14
- 24,000+ reviews
- 1000mg per tablet
- Cold sore prevention
What Could Be Better
- Large tablet
- Single amino acid
- Needs consistent daily use for cold sores
- Not for those with high lysine intake
Who Is This For?
Best For
- Cold sore prevention
- Immune support
- Collagen synthesis support
- Those with low lysine intake
Not Ideal For
- Those with kidney disease
- Those already eating high-lysine diet
- Those wanting complete amino blend
- Those preferring capsules
Our Verdict
NOW L-Lysine is the cold sore fighter — 250 tablets under $14 for the amino acid most studied for HSV prevention. Beyond cold sores, lysine supports collagen and immune function at a rock-bottom price.
Alternatives to Consider
No direct alternatives listed for this product yet.