I don't know about the practices of Instaflex, but the ingredients for joint relief of Hyaluronic Acid, turmeric, and boswellia serrata, in combination with Glucosamine have really, really helped me. They are available in the Fast-Acting form of Trigosamine, another product available in drug stores.
Be sure to get the orange and green label with all the right ingredients. Before using this I was hobbling around with sore feet, knees, back, neck and pain in hands and elbows after driving long distances. Was going to give up gardening, stairs and shrink my life. Now I do everything I once did and feel like my same old self.
This combination really works. Give it enough time.