Articular cartilage is made up of 60/80% of water, 8% of glycosaminoglicanes, which are responsible for preserving the characteristics of the cartilage, and 2% of chondrocytes and collagen.
Glucosamine is a natural glycosaminoglycane present in the cartilage. When orally administered, it protects against arthritic processes.

The main mechanisms of action of glucosamine are:
- Glucosamine supply, as a structural unit of the cartilage
- Cell protection: removes free radicals

Some of its secondary mechanisms of action are:
- Blocks the action of metaloproteases
- Anti-inflammatory effect