I have used Life Priority products for more than 12 years. I started with Joint Decision (glucosamine) because my knees were aching due to many years of playing sports. The product took approximately 4 weeks to kick in, (for some it kicks in sooner) but when it did, it was remarkable! I went from playing 35 softball games a year with my knees wrapped and hurting most of the time, to playing over 100 games including national and world tournaments with no wrap and little to no discomfort! In recent years, as senior softball began to allow hotter bats, the game became much faster. Consequently I looked into additional products including; Mind, Lift, and Muscle Memory. The first two allow me to be more alert, and as a pitcher that is imperative. Using Muscle Memory results in less stiffness the second, third days of tournament play. I put these supplements in a Gatorade product and take about one hour before a game. I do not play a game without first taking these three important supplements, any more than I would attempt to play a game without stretching! My wife and I also use other Life Priority products such as Prostrate Priority, Calcium and Omega 111 Fish Oil. Our experience is that the products are what they are represented to be, are effective, and are made in the USA!