What really sold me on BIOPREPARATION. We have a Beagle he’s 12 years old his liter mates are all dead. His hind quarters was going limp so we thought he was going have to be put down in the near future. I started him on the animal version number F2+. Within about two weeks he started to gain strength in his hind quarters and within a month he was acting like a three or four year old running, racing around the house we were shocked at his progress. – John R., USA