Lysine 100g

$59.95 AUD
By RN Labs



An Essential Amino Boost

Lysine is an essential amino acid, meaning the body cannot produce it independently and must obtain it through diet or supplementation. Due to its various health benefits, lysine is often used as a powdered dietary supplement.

Key Benefits:

  • Protein Building: Lysine is a building block for proteins, aiding muscle repair and growth. It's vital for producing collagen, an essential protein in skin, hair, and nails.
  • Calcium Absorption: Lysine helps the body absorb calcium more effectively and reduces the amount of calcium lost in the urine, which can benefit bone health.
  • Herpes Prevention: Some studies suggest that lysine supplementation can help reduce the frequency, duration, and severity of herpes simplex virus outbreaks, including cold sores.
  • Stress Reduction: Lysine may play a role in reducing anxiety and the body's stress response, particularly in populations with low dietary intake.
  • Other Potential Benefits: Lysine is also being researched for its potential role in heart health, diabetes management, and promoting healthy gut function.


  1. General Supplementation: For adults, the typical dosage for general lysine supplementation can range from 500 mg to 2,000 mg daily. This can be taken as a preventive measure or to address a specific deficiency.

  2. Herpes Simplex Virus (Cold Sores): For those using lysine supplements to reduce the frequency or severity of cold sores caused by the herpes simplex virus, doses can range from 1,000 mg to 3,000 mg daily, often divided into multiple doses.

  3. Stress and Anxiety: Some studies on lysine's effects on stress and anxiety have utilized doses ranging from 1,000 mg to 3,000 mg daily, though the optimal dosage for this purpose is still not well-defined.

  4. Children: The appropriate dose of lysine for children can vary significantly and will often be lower than for adults. It's crucial to consult a pediatrician or another healthcare provider for guidance on dosing for children.

  5. Considerations:

    • Lysine can be taken with or without food.
    • Starting with a lower dose and gradually increasing it (if needed) can help monitor for adverse reactions.
    • Some side effects, though rare, may include stomach pain, diarrhea, and sometimes allergic reactions.
  6. Interactions and Precautions:

    • Lysine may affect the absorption of calcium.
    • Lysine might also reduce the effectiveness of certain antibiotics.
    • People with high cholesterol, liver disease, or kidney disease should consult with a healthcare provider before taking lysine supplements.


L-lysine 1g


  • L-lysine has not been extensively tested for its effects during pregnancy.
  • Avoid use during pregnancy or lactation unless confident that its impact can be reasonably deemed to be safe or beneficial.
  • Always read the label.
  • Dietary supplements should not replace a balanced diet.
  • If symptoms persist, worsen or change unexpectedly, consult your healthcare professional.