I don't know if their business is setup for direct mail order but the owner is Harry Berrier DVM and his phone is 573-442-5309. I'm pretty sure he still operates from his residence...he's been doing it for years...he's been living for years too. His business is quite the local success story. Pretty cool gig to hire high school/college kids to mix and package your product and have UPS drive up your driveway to distribute your product for you!
UDS x 2...now they're reproducing!