Natural Factors

L-Lysine 1000 mg

  • Regular price $10.59
  • Helps reduce the recurrence of HSV infections (e.g., cold sores)
  • An essential amino acid for the maintenance of good health
  • Helps in collagen formation


If you need a little bit of extra support for your cold sores, Natural Factors L-Lysine can help! Not only does it help reduce herpes simplex virus (HSV) recurrence and help in collagen formation, but it is also an essential amino acid for the maintenance of good health.

Medicinal Ingredients

Each tablet contains:

L-lysine (hydrochloride) — 1000 mg

Non-medicinal Ingredients

Microcrystalline cellulose, stearic acid, croscarmellose sodium, coating (carbohydrate gum [cellulose], glycerin), vegetable grade magnesium stearate (lubricant), silica.

Recommended adult dose: 1 tablet 1–3 times daily or as directed by a health care practitioner.