Review on Pet Naturals Vermont L Lysine Fun Shaped by Crystal Long

I bought these for two house cats. I adopted a kitten from a local animal welfare organization with upper respiratory problems. The adopted kitten eventually passed the UR problem on to my other cat. Now I give them 2 of these every day to keep their immunity up. They have been taking L-lysine for about 3 years now. For the first few years after taking L-lysine, they got infected once a year, but I'm happy to report that no cats had an infection for a year. I would like to believe that L-lysine played its part this year without infection.