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Amino acids are included in the structure of muscles and cells. There are 20 amino acids of importance for human biochemistry. The 8 are called essential amino acids. The individual amino acids are vital nutrients that are essential for the body's growth, regeneration, including wound healing, the immune system and the production of enzymes and hormones.

The amino acids via diet come from both plants and animals. We have to get them through our food as we do not produce them ourselves. The individual proteins are built up as a complex network of hundreds of amino acids that are linked into basic units called peptides. Two amino acids bind to a dipeptide, three to a tripeptide, four to a tetrapeptide, and many amino acids bound to form a polypeptide. Numerous polypeptides together form a protein. Our food proteins also have this structure in a dense and complicated network consisting of a very large number of amino acids.

However, in order for the organism to utilize the amino acids bound to the protein, it is essential that they be completely released from one another. A prerequisite for achieving this is that we are able to fully digest the protein we consume so that it is completely broken down into its molecular constituents, ie. amino acids. With few exceptions, only free amino acids can be taken up and used by the organism.

L-Lysine is one of the 20 amino acids used by the body to build protein. Of these 20 amino acids, Lysine is one of the 8 essential amino acids. This means that the body cannot synthesize it itself, but that it must be fed to the body through the diet. Lysine is a free-form amino acid.


I really want to give a high five to your L-Lysine and Vitamin C. I have been taking them since the summer and I have not had a cold sore outbreak since. I usually have one outbreak every 1-2 months for the last 15-20 years.

Rikke, customer, 2019

This product is VEGAN and thus suitable for vegetarians and vegans.

Preventative (daily dose):

2 x Lysine (1000 mg)

2 x Vitamin C (2000 mg)

Acute (every 2 - 3 hours)

4 x Lysine (2000 mg)

4 x Vitamin C (4000 mg)


The daily recommended dose is 1 capsule two to three times a day on an empty stomach. And preferably in combination with Vitamin C. This product is VEGAN and thus suitable for vegetarians and vegans.

N.B. It is important to examine the ingredients and be aware of any allergies or hypersensitivity before consuming the product. An overview of the ingredients can be found in the Supplement Facts tab.

This product is not intended to diagnose, treat, cure or prevent any disease. The supplement may not be used as a substitute for a varied diet. The intake of this supplement should not exceed the recommended dose. This product is not intended for pregnant, nursing mothers and children under 18 years.


Serving Size: 1
Amount Per Serving
% Daily Value
L-Lysine (HCL)
500 mg
Other ingredients: Di-calcium Phosphate, Magnesium Stearate and Stearic Acid
Suggested use: As a dietary supplement, take one (1) to two (2) tablets daily.
Warning: This product is manufactured and packaged in a facility which may also process milk, soy, wheat, egg, peanuts, tree nuts, fish and crustacean shellfish.

Other people have said...


It is difficult to choose just one VITAVIVA product. I started for approx. 20 years ago with buying L-Lysine from VITAVIVA. I've been taking it ever since - it's the only remedy I've tried that has a clear effect on my herpes outbreaks along with fairly large doses of vitamin C. When an itchy feeling start on my lip, I start immediately - and the eruption never sees the light of day :-)

Lisbeth Hecksher, Reflexologist with expertise in children and fertility


I really want to give you a “thumbs up" on your L-Lysine - I have taken them since before summer and haven’t had an outbreak of cold sores since -  which I usually got every 1-2 month the last 15-20 years.

Rikke, Customer 2019


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