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.
(NaturalNews) According to Medical News Today, collagen is one of the most necessary amino acids in the body. About 30 percent of the body's proteins are collagen-based. There are 28 forms of collagen, each responsible for various processes in the body. Although collagen is most famous for its skin-healing benefits, collagen is essential for relieving joint pain as well. Collagen is used to restore elasticity to the joints.