The role of each of these two substances is very different. It is an undeniable fact that collagen is a valuable protein. Its function is to form the set of all tissues of the body. These tissues consist of collagen and elastin.
Collagen accounts for 80% of the weight of all tissues and about 30% of all proteins in the body. This is the most abundant structural protein of cartilage.
For its part, glucosamine is a substance the body uses to stimulate the maintenance and repair of joint tissues. Its role is to induce labor for maintenance and repair of damaged joint tissues and not to build these tissues.
Collagen accounts for 80% of the weight of all tissues and about 30% of all proteins in the body. This is the most abundant structural protein of cartilage.
For its part, glucosamine is a substance the body uses to stimulate the maintenance and repair of joint tissues. Its role is to induce labor for maintenance and repair of damaged joint tissues and not to build these tissues.

