Shelby just had her second surgery one week ago.  Left knee this time.  Right knee done Jan. 2014. Shelby is doing much better this time around.  I truly believe, that having put her on the GlycanAid HA supplement has helped her to be stronger and healthier.  The tear was 20% against 80% last time. That alone tells me she is stronger.  We will be leaving her on GlycanAid HA for the future.  I could not have done as well myself (76 yrs. old) without the manual that I also copied online.  Thank you so much for making things better for all the dogs and people.