For the last 3 months, I have been suffering from acute pain in my calf muscle due to a cyst. This little tiny cyst suddenly formed due high intense exercises and has screwed me like anything. After regular physiotherapy sessions and guidance of Doctor i can at least do my regular walk. Special thanks to Heathy hey collagen powder, in a week it has improved my mobility. I got it for aging and to strengthen my skin but ooh la la it has really done miracles to strengthen my ligaments.