In other words: A Permutation is an ordered Combination. There are basically two types of permutation: 1  Repetition is Allowed: such as the lock above. It could be 333.  No Repetition: for example the first three people in a running race. You can't be first and second.
For this reason, the idea that collagen supplementation can be an effective treatment for joint pain, osteoarthritis, or any other condition, is highly implausible, if not impossible in principle.
Fish extract collagen is considered superior because the body is thought to absorb it more easily, owing to its lower molecular weight. There are more than 20 types of collagen in the body. Type I Collagen is the most abundant type of collagen in the human body and is found in the bones, skin, tendons, and tissue. Research has shown that collagen supplements containing hydrolyzed Type I Collagen may increase collagen levels in the skin. The amount of time it takes for someone to see results after taking a liquid collagen supplement varies, but most people see improvement in their skin within a few weeks to a month and a half.