I highly recommend SierraSil Joint Formula 14 for maintaining ease of movement. Part of my work, to update our Calgary city-wide displays, is very physical, involving lots of bending and stretching. Over the past couple of years since using SierraSil, I’ve found getting up again from a bending position is much easier. In fact, I can’t quite remember ever having a problem with that. I’ve recommended this product to many people. I appreciate the natural, non-toxic ingredients. Bottom line: SierraSil really works!