L-Lysine - For Cold Sore, Immune Support & Collagen Health
About L-Lysine
Strengthen immune defenses and support skin, tissue, and bone health with our L-Lysine Supplements collection at Coal Harbour Pharmacy. L-Lysine is an essential amino acid best known for helping reduce the frequency and severity of cold sores (HSV-1), while also playing a key role in collagen formation, tissue repair, and calcium absorption. Ideal for daily immune maintenance or targeted antiviral support, our pharmacist-curated range includes high-potency capsules, tablets, lozenges, and vegan-friendly options from trusted Canadian brands.
What Is L-Lysine?
L-Lysine is one of nine essential amino acids the body cannot make on its own. It must be obtained from diet or supplements and is critical for protein synthesis, immune function, and connective tissue health. Clinically, L-Lysine is widely used to support HSV-1 management by counterbalancing arginine, which the virus relies on to replicate.
Benefits of L-Lysine Supplements
-
Cold Sore Support (HSV-1): Helps reduce outbreak frequency and severity
-
Immune Health: Supports antibody production and infection resistance
-
Collagen & Skin Health: Essential for collagen synthesis and wound healing
-
Bone Health: Improves calcium absorption and retention
-
Recovery & Repair: Supports tissue repair after illness, stress, or exercise
Who Can Benefit from L-Lysine?
-
Individuals prone to cold sores
-
Those seeking immune system support
-
People focused on skin, hair, and collagen health
-
Vegetarians or low-protein diets
-
Athletes and active individuals supporting recovery
Forms of L-Lysine Available
Our collection includes pharmacist-selected formats to match your needs:
-
Capsules & Tablets: High-potency daily support (500–1000 mg)
-
Lozenges: Targeted oral and cold-sore support
-
Powders: Flexible dosing for custom routines
-
Vegan Formulas: Plant-based capsules without animal derivatives
How to Use L-Lysine
-
Typical Dose: 1,000–3,000 mg daily
-
For Cold Sore Prevention: Daily maintenance dosing
-
During Active Outbreaks: Short-term higher dosing (as directed)
-
Best Taken: Away from arginine-rich foods for HSV support
Always follow label directions or consult a healthcare professional.
FAQs About L-Lysine
Can L-Lysine cure cold sores?
No, but it can significantly reduce frequency, duration, and severity.
Is L-Lysine safe for long-term use?
Yes, when used within recommended dosages.
How quickly does it work?
Some people notice benefits within days; prevention improves with consistency.
Can I combine L-Lysine with vitamin C or zinc?
Yes — they’re often paired for enhanced immune and skin support.
Why Buy L-Lysine from Coal Harbour Pharmacy?
-
Pharmacist-reviewed, professional-grade supplements
-
Trusted Canadian & international brands
-
Clean labels, vegan options available
-
Fast, reliable shipping across Canada
-
Personalized guidance online or in-store
Shop L-Lysine →
Sort by
7 products
Filters
Free Delivery
Satisfied or refunded
Top-notch support
Secure payments
Encrypted checkout processing
Offers exclude prescriptions and in-store purchases.
Subscribe & Get a First-Order Reward
Plus, earning reward points on eligible online purchases and enjoy future store credit.
We respect your inbox at Coal Harbour Pharmacy - Expect thoughtfully curated health and wellness updates, timely reminders, and exclusive online savings.













