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.
More in Holistic Health. Collagen is a protein found in connective tissues throughout your body. As you age, your skin's inner layer loses collagen andâas a resultâbecomes less supple and firm and more vulnerable to damage. Some people attempt to restore collagen by taking a collagen supplement.