Lysine (L-Lysine) 500mg



L-Lysine is an essential amino acid that is important for collagen synthesis and maintaining good bone health. L-Lysine helps boost the immune system and treat cold sores. Some evidence suggests that L-Lysine may be beneficial in the reduction of Lipoprotein (a), a cardiovascular toxin. L-Lysine stimulates the release of human growth hormone and may facilitate some degree of muscle growth.

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Pharmacological Action

L-Lysine is required for collagen synthesis and it may be important to bone health. L-Lysine’s therapeutic effect on bone could be related to an improvement of nitric oxide (NO) production and type 1 collagen synthesis by osteoblasts both in normal and in osteopenic bone. L-Lysine antagonises herpes simplex virus (HSV) growth in vitro and this effect may be important clinically. Research suggests that lysine enhances the renewal of structural proteins and may prevent the deterioration of aneurysms.

Product Composition

Each caplet contains the following active ingredient:

L-lysine 500mg

Inactive ingredients: Polyvinylpyrrolidone, sodium starch glycolate, magnesium silicate and magnesium stearate.

Suitable for vegans and vegetarians.

Dosage Directions

Take 2 caplets 2 – 3 times a day.

Children 7 – 12 years of age:
Take 1 caplet twice daily.

Take on an empty stomach.

Product Warnings

Do not use this product if you are hypersensitive (allergic) to any of the ingredients. If you are on any medication or suffering from any medical condition, it is advisable to seek medical advice before starting any new medicine, supplement or remedy. Do not exceed recommended dosages unless on the advice of a healthcare practitioner. This medicine has not been evaluated by the Medicines Control Council. This medicine is not intended to diagnose, treat, cure or prevent any disease. Health supplements are intended only to complement health or supplement the diet.

Side Effects

Less frequent side effects reported are diarrhoea and abdominal pain.


There are no known contraindications.


Calcium supplements: Concomitant use may increase supplemental calcium absorption and decrease urine calcium loss.

Storage Instructions

Store in a cool dry place below 25°C. Keep out of reach of children.