Natural Factors
Natural Factors L-lysine 1000 mg (120 Tablets)
Essential amino acid that supports immune function and tissue repair
Why Choose This Product
IMMUNE SUPPORT
Helps maintain healthy immune function and supports the body's natural defenses against HSV infections like cold sores.
TISSUE REPAIR
Essential amino acid your body needs for growth, development, and maintenance of all tissues including muscle and skin.
COLLAGEN FORMATION
Supports collagen production, the protein that keeps skin, joints, and connective tissues strong and healthy.
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How It Works
How It Works
L-lysine is an essential amino acid your body cannot produce on its own. It works by supporting protein synthesis and immune cell function, while competing with arginine—an amino acid that certain viruses need to replicate. This dual action helps maintain immune health and supports tissue repair processes.
Who It's For
Adults looking for immune system support, especially those prone to cold sores or HSV infections. Also beneficial for active individuals focused on tissue repair and recovery, or anyone wanting to support collagen formation for healthy skin and joints.
Who It's Not For
Not suitable for children or those with kidney disease without medical supervision. Pregnant or breastfeeding women should consult a healthcare practitioner before use.
About This Product
What It Does
Natural Factors L-Lysine delivers 1000mg of this essential amino acid to support immune function and help reduce cold sore recurrence. Unlike your body's other amino acids, L-lysine cannot be produced internally—you must get it from food or supplements. This pharmaceutical-grade formula ensures you get the therapeutic amounts your immune system and tissues actually need.
Why It Works
- IMMUNE DEFENSE: Supports healthy immune function and helps reduce the frequency of HSV infections including cold sores through targeted amino acid competition.
- TISSUE BUILDING: Essential for protein synthesis, muscle repair, and the growth and maintenance of all body tissues.
- COLLAGEN SUPPORT: Required for collagen formation, helping maintain healthy skin, joints, bones, and connective tissues throughout your body.
What's Inside
Clean, vegan-friendly formula with no artificial colours, preservatives, dairy, gluten, soy, corn, or GMOs. Each tablet delivers 1000mg of L-lysine hydrochloride in a form your body can readily absorb and use.
Why we carry it: Natural Factors consistently delivers pharmaceutical-grade amino acids with third-party testing that meets Canada's highest supplement standards.
How to Take
Full 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. | |
| Allergy Information | |
| Contains no artificial colours, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs. Suitable for vegetarians/vegans. |
Customer Reviews
5 reviews
Questions & Answers
Research & Science
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