Primeform Recovery and Body Prep are favorites with us. Here is our story: My husband is 59 and still enjoying his favorite sport of motocross racing (racing dirt bikes on a dirt track with lots of jumps and obstacles and turns). When Primeform was first introduced, they sent a sample packet of each to managers. We went to a race that weekend and I used the sample packs on hubby and surprise! He was not sore.
Very unusual, because he is the weekend warrior type. The next weekend, we also were at a race, but this time we did not have the Primeform and he was so sore the next day or so, that he was hobbling around. I thought, "Wow, this works wonders on the old guys," so I bought some.
Then a test on age related effectiveness... A young friend (23) in the same sport used it and he also told me that he was MUCH less sore than normal, and he felt it improved his performance and stamina. This is from a man who does not talk too much about soreness because he wouldn't want anyone to think he was a wimp... Ha. I highly recommend this stuff to anyone who has a demanding sport. Of course, then you have the problem of deciding if you want to share this wonderous product with the competition!!