Pro active liquid collagen is the premier nutritional supplement, making it more innovative in the science of collagen, because every day 20ml dose contains apart from hydrolyzed collagen, vitamin B1, B2, B5, B6, magnesium and silicon, which have amazing beneficial properties for the human body. Magnesium helps prevent cramps, to sleep better, direct absorption of collagen by the body and facilitating bowel. A must for smokers, athletes and people with dry skin. Recommended In people suffering from arthritic problems. Those who exercised regularly (athletes, gymnasts, dancers). In people overweight or who are forced to lead a sitting life.