The beneficial functions of HA in skincare and health are wide and varied. Found in our skin, joints, eyes and connective tissue, the most important function of HA is its very high capacity for retaining water. 1-4
In our skin, HA is present in large quantities in the extracellular matrix (ECM). Because of its significant ability to attract and bind water molecules, HA is important for maintaining structure and volume in the skin. Together, collagen, elastin, and HA form the scaffold of the skin, providing structure, and texture.7,9
Hyaluronic acid also plays a role in tissue and wound repair. In the joints, HA is present in cartilage and synovial fluid, acting as both a lubricant and shock absorber.3,9