L-Lysine powder for cats — immune support and feline herpesvirus control
L-Lysine Powder by Vittalogy® Pets is an essential amino acid supplement formulated exclusively for cats. L-lysine is fundamental for the feline immune system and is recognised as a support in the control of feline herpesvirus (FHV-1), the main cause of conjunctivitis and recurrent respiratory problems in cats.
GMP + ISO 22000 Made in Spain Cats only
Benefits of L-Lysine for cats
Feline immune support
L-lysine contributes to the normal functioning of the immune system, strengthening the cat's natural defences.
Eye and respiratory health
Recognised support in the control of feline herpesvirus (FHV-1), associated with conjunctivitis and recurrent colds.
Maximum purity
Single-ingredient formula: 100% L-Lysine without fillers or excipients that could interfere with the dose.
Exclusively for cats
Specifically formulated for feline metabolic needs, unlike generic canine supplements.
Complementary pet food. This is not a medicine and does not replace veterinary treatment.
Which cats is L-Lysine recommended for?
✅ Recommended for
- Cats with diagnosed feline herpesvirus (FHV-1)
- Recurrent episodes of conjunctivitis
- Cats with recurrent respiratory infections
- Cats with a weakened immune system
- Preventive use in multi-cat households or colonies
⚠️ Consult your vet
- Kittens under 6 months old
- Cats with chronic kidney disease
- Pregnant or nursing females
⚠️ This product is formulated exclusively for cats.
L-Lysine dosage for cats
The dose is independent of the animal's weight. Administer once daily mixed with the main food.
Composition of Vittalogy Pets L-Lysine
Ingredients per dose (500 mg)
| Ingredient | Amount |
|---|---|
| L-Lysine (essential amino acid) | 500 mg (100%) |
Analytical constituents (per 100 g)
| Constituent | Value |
|---|---|
| Moisture | 0,4% |
| Crude protein | 100% |
| Crude oils and fats | 0% |
| Crude fibre | 0% |
| Crude ash | 0,4% |
Does L-Lysine cure feline herpesvirus?
There is no cure for FHV-1, as the virus remains latent for life. L-lysine competes with the arginine the virus needs to replicate, reducing the frequency and intensity of outbreaks.
How long should it be given?
For cats with FHV-1, long-term continuous use is recommended. During acute outbreaks, some vets recommend temporarily increasing the dose. Always consult your vet.
Does it have a flavour? Do cats accept it?
Pure L-lysine has a neutral to slightly salty taste that most cats accept well when mixed with wet food.
Is it suitable for dogs?
No. This product is formulated specifically for cats. For dogs, please check other supplements from the Vittalogy Pets range.
