Thomas Labs® provides safe, effective cat health supplements and many other cat essentials for proper cat care.

We develop high-quality cat supplements specifically for the health of cats and kittens. Whether you're looking for cat vitamins, kitten milk replacers, or probiotics for cats, we've got you covered. Our products contain only the highest quality ingredients to help keep your cats and kittens healthy and strong. We are committed to developing the safest, most effective solutions for improving cat health—from newborn kittens to senior cats and everything in between.