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.
Since collagen is found in your eyes and blood vessels, understanding how to build collagen and protect it from damage is critically important to healthy aging and even life itself! Sources of Collagen. Sources of collagen can be found in chicken and beef cartilage and also in collagen supplements.