Helps boost cats immune system. Great for cats that have allergies, get stressed out or sick easily. I used this on my cat when she had a herpes infection/scar tissue in her eye.

I've tried several forms of L Lysine for my FeLv+ kitty. I like this one best. It dissolves very quickly in a little water, to which I add a teaspoon of soft food. My cat eats it up with no questions asked! He's been on this supplement for about six months and it really helps with his respiratory symptoms.