My Aussie, Myst, had a repetitive shoulder injury for several years that came from doing stock work and agility. On one of her visits to the chiropractor, we were given System Saver to try, even though she was already on Glyco-Flex. Myst has been on System Saver (along with the Glyco-Flex) since, and has never had another flairup in her shoulder! I love this product!
~ Pamela Christian