I've had my Biomax 900 for about 3 years and it's been great for anti-aging and treating soreness from being such a gym rat. I used to see some of the older guys at the gym with compression sleeves on their knees and later I learned why. They'd lost cartlidge and were experiencing pain. Well I had been a runner for a long time before. So I started cycling instead because it's not hard on the knees. But eventually and more recently I experienced pain in my right knee, not as much the left one but a little, just walking down the stairs. So I reached out to the Platinum Customer Service team and they gave me directions on what to do to help both knees heal. A friend also recommended to make chicken feet broth due to the collage 2 content which helps regrow cartlidge. So within a few weeks I started feeling less pain and I was amazed how the Biomax is so powerful. I now use it everyday. I'm 65 now and I'm so grateful that with the right tools, like the Biomax, that my body is able to heal. I'm looking forward to buying 3 more so I can have 4 of them so I can do my whole body at the same time. So far the Biomax has been one of the best investments I have ever made, and their customer service is geat.