Hyaluronic acid injections are administered into the joint. The treatment process may vary depending on the patient's condition and the joint being injected. Usually, a series of injections over several weeks is required. 

Hyaluronic acid is usually administered in the form of intra-articular injections for osteoarthritis treatment. 

The body's collagen production may decrease with age, leading to deterioration in joint health.

Intra-articular collagen is a significant protein therapy for joint health and function. Collagen within the joint is especially abundant in cartilage tissue and supports joint mobility.