I'm a runner. 64 years-old. My knees have been more resilient and less painful since I started on Sparkle's special blend for ligament and tendons. Very grateful. My brother has seen significant improvement with his shoulder after he started sparkle. Of course, healing comes from many sources. But I feel Sparkle has made a true contribution to my ability to keep running and stay fit. Thank you very much to all the team at Sparkle!