I've been using this product for over a year. I have degenerative disc disease (mild case). I'm also a major klutz. When I fall, it's usually my knees and shoulders that take a brunt of the jolt. Since I started the Tamaflex, I fell twice, once worse than the other. The mild one was like nothing ever happened. The second one, my knee was swollen but not painful. I was able to work out in the gym without any problems. It also didn't affect my job or my walking (I walk 20 to 30 miles a week). I love this stuff.
Bottom Line: Yes, I would recommend this to a friend