Is the Glucosamine in Free and Easy, Glucosamine Sulphate or Glucosamine Hydrochloride (HCL)?
Free and Easy for Dogs uses neither. The sulfate or HCL is simply a carrier molecule for the actual glucosamine. One study showed the actual glucosamine in glucosamine sulphate to be 63% and for HCL it was 83%. Free and Easy is extracted using water resulting in a more pure form of glucosamine, which is one of the reasons why it is so effective. Also, a potential problem of glucosamine sulphate is that some dogs and humans are allergic to the sulpha.