I have had a wonderful experience with NuVet Labs. I have used them for our cat since she was a kitten and now she is six years old. She really loves the stuff and always cannot wait to drink her vitamins. She has been very healthy and I am happy with the products. Something else I have noticed is that she smells great. She is an indoor cat and we do not give her any showers, but all our house visitors make it a point to mention how good she smells. I have not had any complaints or problems. I will definitely continue to order from NuVet Labs.