I have no reason to think it didn't work
I took this in 1 pill a day in combination with 3 pills of Glucosamine chondroitin a day and my knee pain wasn't as bad during the day and doing physical activity.<br />The pain didn't go away, It just made the pain less frequent allowing me to walk better and stand longer.<br />The problem is I don't know if the effects is because of glucosamine or Hyaluronic acid all I know is when I took the cocktail combination of vitamins my knee felt much better.
Rating: 4 stars