I'm interested in starting Cynder on a joint supplement. I think having to sit up to eat is starting to become a tad uncomfortable for her, although otherwise she's getting around just fine. Maybe a little stiff jumping up onto the couch at times. There are just so many supplements out there that I wasn't sure what would be the best bang for my buck. Glycoflex, Devcor, Dasequin, Prudence...any one that is more effective than the other? Any benefit to a made-for-dogs joint supplement versus generic glucosamine/chondrotin from the store? I have some Prudence samples that I'm starting her on now, but I know it takes a few weeks to really see an effect and I only have enough for two weeks.