Natra LYSINEprotect - Cold Sore L-Lysine Supplement | 60 Capsules
Visit the Natra Store| Brand | Natra |
| Serving | 2 vegetarian capsules, once daily |
| Licensed Natural Health Product | NPN 80128875 |
| Quality Standards | GMP-compliant facility |
| Country | Made in Canada  |
About this item
- LYSINE 500 MG, DAILY ORAL CAPSULE: An L-Lysine 500 mg supplement in vegetarian capsule form - not a cream or patch. Helps to reduce the recurrence of herpes simplex virus (HSV) infections, such as cold sores, for proactive daily support.
- WHY A LYSINE SUPPLEMENT vs A TOPICAL: A daily oral capsule for people who want ongoing internal L-Lysine support, not a spot-treat cream or patch. Take 2 capsules once daily - a simple 30-day routine of 60 capsules.
- 8 INGREDIENTS IN ONE FORMULA: Combines L-Lysine, Andrographis, Olive Leaf, Prunella, Zinc, Vitamin C, Vitamin B6 (P5P) and Selenium to help maintain and support immune function and overall wellness in a single daily serving.
- HOW TO USE + ALLERGENS: Adults take 2 capsules once daily with food. Dairy-free, gluten-free and yeast-free; no artificial colours or preservatives. Consult a health practitioner before use if pregnant, breastfeeding, or on medication. Verify full allergens on the label.
- CLEAN CANADIAN QUALITY YOU CAN TRUST: Made in Canada in a GMP-compliant facility. Licensed Natural Health Product, NPN 80128875. Vegetarian V-Capsules with no artificial colours or preservatives - quality you can read on the label.
- L-LYSINE + IMMUNE MINERALS: Each daily serving pairs L-Lysine 500 mg with Zinc, Selenium, Vitamin C and Vitamin B6 (P5P), nutrients that help maintain and support immune function during seasonal changes.
- PRUNELLA + OLIVE LEAF + ANDROGRAPHIS BOTANICALS: Includes Prunella vulgaris, plus Olive Leaf standardized to 15% oleuropein for antioxidant support and Andrographis paniculata - traditional botanicals rounding out this lysine-based daily immune formula.
- EASY-TO-TAKE VEGETARIAN CAPSULES: 60 vegetarian V-Capsules, swallowed - no measuring powders, no mess. One bottle is a 30-day supply at 2 capsules per day, made for adults who deal with recurring cold sores.
Product description
Natra LYSINEprotect - a daily oral lysine routine for recurring cold sores
A closer look at Natra LYSINEprotect - L-Lysine 1000 mg per serving with immune botanicals and minerals, made in Canada. Licensed Natural Health Product NPN 80128875.
LYSINEprotect
LYSINE 500 MG, DAILY ORAL CAPSULE
An L-Lysine 500 mg supplement in vegetarian capsule form - not a cream or patch. Helps to reduce the recurrence of herpes simplex virus (HSV) infections, such as cold sores, for proactive daily support.
WHY A LYSINE SUPPLEMENT vs A TOPICAL
A daily oral capsule for people who want ongoing internal L-Lysine support, not a spot-treat cream or patch. Take 2 capsules once daily - a simple 30-day routine of 60 capsules.
Advanced Ingredients, Superior Results
A closer look at Natra LYSINEprotect - L-Lysine 1000 mg per serving with immune botanicals and minerals, made in Canada.
L-Lysine
1000 mg / servingOlive Leaf
15% oleuropeinPrunella
self-heal herbAndrographis
paniculata
Vitamin C
Mg ascorbateZinc
bisglycinateVitamin B6
P5PSelenium
selenomethionineNatra LYSINEprotect: Supplement Facts
Each Capsule contains:
- L-Lysine500 mg
- Prunella (Self-heal herb) (Prunella vulgaris, Shoot and leaf, 10:1 extract equivalent to 375 mg of dry herb)37.5 mg
- Olive leaf (Olea europaea, Leaf, 10.9:1 extract equivalent to 300 mg of dry herb) Standardized to contain 15.0% Oleuropein27.5 mg
- Andrographis (Andrographis paniculata, Herb top, 4:1 extract equivalent to 100 mg of dry herb)25 mg
- Vitamin C (Magnesium ascorbate)25 mg
- Vitamin B6 (Pyridoxal 5'-phosphate)7.5 mg
- Zinc (Zinc bisglycinate)1 mg
- Selenium (Selenomethionine)37.5 mcg
Non-Medicinal Ingredients: Hypromellose, Microcrystalline cellulose, Stearic acid, Silicon dioxide.
Recommended Use or Purpose: Recommended Purpose: Helps to reduce the recurrence of herpes simplex virus (HSV) infection (e.g. cold sores). Source of an essential amino acid involved in muscle protein synthesis and the maintenance of good health. Helps in energy metabolism and tissue formation. Helps to maintain immune function and the immune system. Source of vitamins and minerals to support biological functions which play a key role in the maintenance of good health.
Recommended Dose: Recommended Dose (Adults 19 years and older): Take 2 capsules, 1 time per day. Take with food, a few hours before or after taking other medications or natural health products. Recommended Duration of Use: Consult a health care practitioner for prolonged use.
Cautions and Warnings: Cautions and Warnings: Consult a health care practitioner prior to use: if you are taking prescription medications; if you have serious or major conditions, any type of acute infection, deficiency or excess; if you are taking other diuretics; if you have a history of non-melanoma skin cancer; if you have a kidney disorder. Stop use and consult a health care practitioner if symptoms persist or worsen, or if new symptoms develop. Contra-Indications: Do not use this product if you are pregnant or breastfeeding. Known Adverse Reactions: Diuretic effect may occur. Zinc supplementation can cause a copper deficiency. If you are unsure whether you are taking enough copper, consult a health care practitioner prior to use. Sealed for your protection. Store in a cool dark place. Keep out of reach of children.
Actual product packaging and materials may contain more and different information than shown on our website. Always read labels, warnings and directions before using or consuming a product. This item is sold and shipped by Amazon.ca; purchases are completed on Amazon.
Chaque capsule contient :
- L-lysine500 mg
- Brunelle commune (auto-guérison) (Prunella vulgaris, pousse et feuille, extrait 10:1 équivalant à 375 mg de plante sèche)37.5 mg
- Feuille d'olivier (Olea europaea, feuille, extrait 10,9:1 équivalant à 300 mg de plante sèche) Normalisé pour contenir 15,0 % d'oleuropéine27.5 mg
- Andrographis (Andrographis paniculata, parties aériennes, extrait 4:1 équivalant à 100 mg de plante sèche)25 mg
- Vitamine C (ascorbate de magnésium)25 mg
- Vitamine B6 (pyridoxal 5'-phosphate)7.5 mg
- Zinc (bisglycinate de zinc)1 mg
- Sélénium (sélénométhionine)37.5 mcg
Ingrédients non médicinaux : hypromellose, cellulose microcristalline, acide stéarique, dioxyde de silicium.
NPN 80128875
A simple daily oral lysine routine for recurring cold sores
Get Natra LYSINEprotect on Amazon.ca - fast, protected delivery.
Get it on Amazon.caWhy Natra LYSINEprotect
L-Lysine plus a focused blend of immune botanicals and minerals.
Cold Sore Support
L-Lysine helps to reduce the recurrence of herpes simplex virus (HSV) infections, such as cold sores - the authorized purpose of this product.
Immune Function
Vitamin C, zinc, selenium and vitamin B6 are nutrients that help to maintain and support immune function and the immune system.
Botanical Blend
Olive leaf (15% oleuropein), prunella and andrographis round out the formula alongside the L-Lysine core.
Daily Oral Routine
A swallowed vegetarian capsule, not a cream or patch - 2 capsules once daily for ongoing internal support.
Inside every serving
L-Lysine 1000 mg per 2-capsule serving, paired with olive leaf, prunella, andrographis, vitamin C, B6, zinc and selenium.
How Natra compares
Why a daily oral lysine formula with immune support matters.
| Natra LYSINEprotect | Topical creams | Plain lysine tablets | |
|---|---|---|---|
| Format | Daily oral V-Capsule | Spot-treat cream / patch | Oral tablet |
| L-Lysine per serving | 1000 mg | None (topical) | Varies |
| Immune minerals | Zinc, selenium, vitamin C, B6 | None | Usually none |
| Botanical support | Olive leaf, prunella, andrographis | None | None |
| Sourcing | Made in Canada - GMP | Varies | Varies |
| Allergen profile | Dairy-free, gluten-free, yeast-free | Varies | Varies |
How to use
Take 2 capsules
Adults 19 years and older: take 2 vegetarian capsules, 1 time per day.
Take with food
Take with food, a few hours before or after other medications or natural health products.
Keep it daily
Use consistently as a daily routine; one bottle of 60 capsules is a 30-day supply.
Check with your practitioner
Consult a health-care practitioner for prolonged use, or before use if you have any listed condition.
What the research says about the active ingredients
Peer-reviewed studies and reviews on the individual actives in this formula - L-lysine, olive leaf (oleuropein), Prunella vulgaris, Andrographis paniculata, zinc and vitamin C - shared for education, not as claims about this finished product. Natra LYSINEprotect's claims are the statements authorized under its Natural Health Product licence, NPN 80128875.
Fewer recurrences in a controlled trial
A double-blind, placebo-controlled multicentre trial of oral L-lysine (1000 mg, three times daily for six months) reported that the lysine group averaged significantly fewer herpes simplex recurrences, with reduced symptom severity and healing time.
Human RCTMore patients stayed recurrence-free
In a double-blind, placebo-controlled crossover study (1000 mg daily), significantly more patients were recurrence-free during lysine than during placebo, suggesting some people may benefit from prophylactic lysine.
Human RCTEvidence is mixed - one trial found no benefit
A double-blind, placebo-controlled trial using a lower dose (400 mg, three times daily) detected no substantial benefit on episode frequency, duration or severity, underlining that the evidence for lysine is mixed.
Human RCTInhibits HSV multiplication in cell culture
Authors note that L-lysine has an inhibitory effect on the multiplication of herpes simplex virus in cell cultures, the rationale behind testing it as an oral prophylactic in people.
Cell-culture rationaleCochrane review of cold-sore prevention
A Cochrane systematic review of interventions to prevent herpes labialis catalogued the range of preventive options studied and assessed the strength of the underlying evidence.
Systematic reviewTreatment and prophylaxis both studied
Across trials, oral L-lysine has been evaluated both for treating active episodes and as ongoing prophylaxis, with effects on occurrence, severity and healing time reported in the positive trials.
Human RCTOleuropein inhibits HSV-1 in cells
In a cell-based study, subtoxic concentrations of oleuropein - the olive leaf compound this formula is standardized to - inhibited herpes simplex virus type 1 replication, with effects linked to host antiviral signalling proteins.
Lab studyAntioxidant protection from olive leaf
The same study found olive leaf extracts protected human cells from lipid peroxidation after oxidative stress and raised antioxidant enzymes such as catalase and superoxide dismutase.
Lab studyOlive leaf's broader actions reviewed
A review notes olive leaf is rich in oleuropein and hydroxytyrosol and summarizes reported anti-inflammatory, immunomodulatory and antiviral activities of the leaf and its phenolics.
ReviewPrunella vulgaris is virucidal to HSV
An anti-HSV polysaccharide isolated from Prunella vulgaris abolished the infectivity of HSV-1 in a plaque assay and was active against acyclovir-resistant strains, with a mode of action differing from acyclovir.
Lab studyAndrographis for respiratory symptoms
A systematic review of seven double-blind controlled trials (896 participants) concluded Andrographis paniculata is superior to placebo for relieving symptoms of uncomplicated upper respiratory tract infection, with mild, infrequent adverse events.
Systematic reviewAndrographis in a randomized trial
A double-blind, placebo-controlled trial (158 adults, 1200 mg/day) reported a significant reduction in the intensity of common-cold symptoms such as sore throat and nasal secretion versus placebo, with no adverse effects reported.
Human RCTA gatekeeper of immune function
A review describes zinc as essential for innate and adaptive immune cells, with zinc ions regulating intracellular signalling and a pro-inflammatory phenotype developing during zinc deficiency.
ReviewNeeded across immune cell types
A comprehensive review summarizes zinc's role in haematopoiesis and in the activation and function of immune cells against bacteria, parasites and viruses, supporting why deficiency impairs defence.
ReviewDeficiency impairs, repletion restores
A review notes that all immune cell types show decreased function under zinc depletion and that impaired functions can be reversed by adequate zinc supplementation matched to need.
ReviewShorter colds in a Cochrane review
A Cochrane meta-analysis found zinc taken within 24 hours of onset significantly reduced the duration of common-cold symptoms in healthy people, though heterogeneity warrants caution.
Meta-analysisZinc acetate lozenges cut cold duration
An individual-patient-data meta-analysis of three randomized trials estimated zinc acetate lozenges shortened colds by roughly 2.7 days versus a 7-day average, consistently across patient subgroups.
Meta-analysisLower cold incidence with supplementation
In the Cochrane review, longer-term zinc supplementation was associated with lower cold incidence and fewer related school absences in children.
Meta-analysisShorter colds with regular intake
A Cochrane meta-analysis of regular vitamin C supplementation found a consistent reduction in common-cold duration - about 8% in adults and 14% in children - though it did not reduce incidence in the general population.
Meta-analysisSupports immune cell measures
A meta-analysis of high-dose vitamin C reported increased lymphocyte counts and reduced markers of inflammation, consistent with vitamin C's role in supporting immune-cell function.
Meta-analysisA role across immune defences
A review details how vitamin C supports immune-cell function and helps reduce oxidative stress, part of why adequate status matters for resistance to infection.
ReviewSeveral nutrients underpin immunity
A review highlights that vitamin C, zinc, selenium and vitamin D each support the adaptive and innate immune systems, so suboptimal status of these immune-relevant micronutrients can impair immune function.
ReviewCorrect deficiencies to support defence
The same review argues that immune-relevant micronutrient deficiencies should be corrected to help maintain physiological resilience to infection, especially in vulnerable groups.
ReviewZinc and the immune signalling system
Mechanistic reviews link zinc homeostasis to the regulation of key immune signalling molecules, illustrating how a trace mineral influences whole-body immune responses.
ReviewFrequently asked questions
What is Natra LYSINEprotect for?
It is a daily oral L-Lysine supplement that helps to reduce the recurrence of herpes simplex virus (HSV) infections, such as cold sores, and helps to maintain immune function. It is a swallowed capsule, not a cream or patch.
How do I take it?
Adults 19 years and older take 2 vegetarian capsules once daily, with food, a few hours before or after other medications or natural health products. Consult a health-care practitioner for prolonged use.
How much L-Lysine is in each serving?
Each 2-capsule daily serving provides 1000 mg of L-Lysine (500 mg per capsule), alongside olive leaf, prunella, andrographis, vitamin C, vitamin B6, zinc and selenium.
What else is in the formula?
Beyond L-Lysine, each serving includes Olive Leaf (standardized to 15% oleuropein), Prunella vulgaris, Andrographis paniculata, Vitamin C (magnesium ascorbate), Vitamin B6 (P5P), Zinc (bisglycinate) and Selenium (selenomethionine).
How long does one bottle last?
Each bottle has 60 vegetarian V-Capsules - a 30-day supply at 2 capsules per day.
Is it made in Canada?
Yes. It is manufactured in Canada in a GMP-compliant facility and licensed by Health Canada under NPN 80128875.
Are there any allergens or cautions?
It is dairy-free, gluten-free and yeast-free with no artificial colours or preservatives. Do not use if pregnant or breastfeeding. Consult a practitioner prior to use if you take prescription medications or diuretics, have a kidney disorder, or a history of non-melanoma skin cancer. Zinc supplementation can cause a copper deficiency.
Where do I buy it?
Use the orange button on this page - it takes you to the Natra listing on Amazon.ca for secure checkout and fast delivery.
A simple daily oral lysine routine for recurring cold sores
Get Natra LYSINEprotect on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80128875. Natra LYSINEprotect helps to reduce the recurrence of herpes simplex virus (HSV) infection (e.g. cold sores) and helps to maintain immune function. The research summaries below concern the individual active ingredients in this formula (L-lysine, olive leaf, Prunella vulgaris, Andrographis paniculata, zinc and vitamin C) and are educational - they are not claims about this finished product. Read and follow the label. Consult a health-care practitioner prior to use if you are taking prescription medications, if you have a kidney disorder, a history of non-melanoma skin cancer, or are taking other diuretics. Do not use if you are pregnant or breastfeeding. Results may vary.
Important information
Safety Information
Cautions and Warnings: Consult a health care practitioner prior to use: if you are taking prescription medications; if you have serious or major conditions, any type of acute infection, deficiency or excess; if you are taking other diuretics; if you have a history of non-melanoma skin cancer; if you have a kidney disorder. Stop use and consult a health care practitioner if symptoms persist or worsen, or if new symptoms develop. Contra-Indications: Do not use this product if you are pregnant or breastfeeding. Known Adverse Reactions: Diuretic effect may occur. Zinc supplementation can cause a copper deficiency. If you are unsure whether you are taking enough copper, consult a health care practitioner prior to use. Sealed for your protection. Store in a cool dark place. Keep out of reach of children.
Indications
Recommended Purpose: Helps to reduce the recurrence of herpes simplex virus (HSV) infection (e.g. cold sores). Source of an essential amino acid involved in muscle protein synthesis and the maintenance of good health. Helps in energy metabolism and tissue formation. Helps to maintain immune function and the immune system. Source of vitamins and minerals to support biological functions which play a key role in the maintenance of good health.
Ingredients
Medicinal ingredients (per 2 capsules): L-Lysine 1000 mg; Prunella (Prunella vulgaris, Self-heal herb, shoot and leaf, 10:1 extract equivalent to 375 mg dry herb) 75 mg; Olive leaf (Olea europaea, 10.9:1 extract equivalent to 300 mg dry herb, standardized to 15.0% oleuropein) 55 mg; Andrographis (Andrographis paniculata, herb top, 4:1 extract equivalent to 100 mg dry herb) 50 mg; Vitamin C (magnesium ascorbate) 50 mg; Vitamin B6 (pyridoxal 5-phosphate) 15 mg; Zinc (zinc bisglycinate) 2 mg; Selenium (selenomethionine) 75 mcg. Non-medicinal ingredients: Hypromellose, microcrystalline cellulose, stearic acid, silicon dioxide. Dairy-free, gluten-free and yeast-free; no artificial colours or preservatives. NMIs are subject to change - always read and follow the label.
Directions
Recommended Dose (Adults 19 years and older): Take 2 capsules, 1 time per day. Take with food, a few hours before or after taking other medications or natural health products. Recommended Duration of Use: Consult a health care practitioner for prolonged use.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than shown on our website. Always read labels, warnings and directions before using or consuming a product. This item is sold and shipped by Amazon.ca; purchases are completed on Amazon.