Amniotic fluid is likely more effective as a viscosupplement than either rooster comb derived HA or HA produced by fermentation technique for several reasons:
1. It is 100% human.
Hyaluronan from human amniotic fluid is immune privileged (it lacks MHC antigens so it does not elicit an inflammatory immune response).
2. The components of amniotic fluid are very similar to healthy, native human synovial fluid.
Amniotic fluid and synovial fluid are ultrafiltrates from blood plasma and contain hyaluronan as well as phospholipids, cholesterol, growth factor proteins, cytokines and nearly the same inorganic compounds.
3.
It restores correct pH levels.
Human amniotic fluid has a pH level of about 7.0; the same as healthy synovial fluid. Osteoarthritis creates an acidic, toxic environment that causes pH levels to fall, typically, to about 3.5. Human amniotic viscosupplementation restores healthy pH levels, allowing the patient's own synovium to recover and --potentially-- slow or even halt progression of the disease.