Bone-up is specifically formulated for cats with hind-end weakness and/or stiff, sore joints. If your cat is limping, can't get up easily or can't jump anymore, Bone-Up is the perfect product for them. They will have their strength and mobility back in no time! This unique easy-to-absorb nutritional blend also helps to repair injuries such as sprains, strains and breaks. Combine with the Joint-Clear or Injur-Ease for even better results!