Review on Lysi-Cat Lysine Supplement for Cats: Boost Your Cat's 🐱 Immunity with a 500-Serving, 8 oz. Canister - Includes Free Scoop! by Jenny Davis

I was very disappointed. The scoop size is at least 4 times larger than other brands I've used but contains less than half the L-lysine. 1 scoop of this product contains only 200mg of L-lysine hydrochloride, while another brand contains 500mg and you only need to give a fraction of the amount of lysine. I can't believe it doesn't have any fillers. Power forms hard lumps in it and does not mix well with food. The cats didn't seem to like it as much as the other types we used. Eventually I gave up and went back to one of the other brands. I wouldn't recommend buying it because it's a low price unless your cat chooses other top brands.