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.
Hydrolyzed collagen is used to make supplements to help treat things like arthritis, osteoporosis, and sports injuries. It can also be found in a wide variety of beauty products. Not all types of physical activity are suitable for everyone. Users take challenges and training advice at their own personal risk.