Short info:

L-Lysine is an essential amino acid the body cannot make.

  • 500mg L-Lysine per capsule
  • Rice flour
  • Vegetable cellulose capsule
  • No binders or other additives
500mg / 90veg.caps
€ 15.00
Full information:
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Dispite huge amounts of research into this amino acid, we are prevented from commenting on any of it because of European legislation.  We therefore strongly recommend you google a variety of terms and research for yourself.

Searches you may wish to make include:

Lysine research

Lysine herpes research

Lysine osteoporosis research

Without enough L-lysine, the following symptoms might occur:
Kidney stones, fatigue, nausea, slow growth, anemia, dizziness, loss of appetite, agitation, bloodshot eyes,  and reproductive disorders, increase in particularly viral infections.

Who is at risk of L-Lysine deficiency?
Athletes with rigorous training regimes, and macrobiotic vegetarians are particularly at risk of insufficient L-lysine intake.  This can be improved with increased intake of legumes.

Those who consume substantial amounts of sugars, pastries, cereals or baked goods may be preventing their uptake of this vital amino acid Lysine, since it interacts in the browning process and becomes relatively unavailable to the body.

L-Lysine or Lysine is one of the essential amino acids.  This means it is essential to the body, but the body cannot make it.  All amino acids are building blocks of proteins, which themselves are the building blocks of just about everything biological.


Children aged 2 - 12:
Recommendations are 23 mg/kg/day or 10 mg per pound of body weight daily.

Adults age 13 and over:
Recommendations are 12 mg/kg/day.

For adults with herpes viral infections:
During an outbreak, take 3,000 – 9,000 mg per day in divided doses.
To prevent recurrences, take 500 – 1,500 mg per day in divided dosages.

Doses of more than 10 grams each day may cause stomach cramps or diarrhoea.
At doses over 10g per day, Lysine may increase the toxicity of certain antibiotics.

L-Lysine and L-Argenine share common metabolic pathways. Supplementing one may suppress absorption of the other.  If both are supplemented, they should be taken at least 2 hours apart.

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