I cannot say enough good things about Viralys L-Lysine. My veterinarian recommended it for a sweet rescue cat I took in from the streets who is FIV positive, and the difference has been incredible. Since starting the supplement, I’ve noticed a significant improvement in his overall health and immune system function. The qualities is excellent, it’s easy to give, and it’s become an important part of his daily routine. If you have an immunocompromise kitty, this product is absolutely worth trying.

My cat has FHV and she had attacks every couple months, which usually led to a round of uveitis. She hated the eyedrops and anti virals. Poor thing. I've tried to give her other brands of lysine but they gave her stomach issues. I give her half a scoop of this 2x per day. It takes several weeks to start really seeing effects of the supplement, but she hasn't had any serious rounds of symptoms since early Oct 2022. I'm still on my first tub 6 months later and nowhere near empty. Definitely been worth it.