You may not experience the same results because there are so many variables that can alter the results including metabolism, dietary habits, genetics and exposure to toxins and medications.
There are however just as many absolutes in nature's laws that you can't dispute or avoid ie. we all need oxygen. Research until you find an answer that makes sense.
MSM is organic sulfer. The cycle of organic sulfur compounds begins in the ocean where microscopic plankton release sulfur compounds called dimethyl sulfonium salts. These salts are transformed in the ocean into D.M.S., which escapes from the water as a gas, that rises into the upper atmosphere. D.M.S. is converted to DMSO and MSM (MSM has the same structure as DMSO minus one oxygen molecule) which is return to the surface of the earth in rainwater. Plants then take up the two compounds into their root systems concentrating them up to one hundred fold. Although sulfur is an abundant element, scientist have found that the depletion of minerals have greatly reduced the amount of sulfur in our drinking water and our food supplies.
Natures cycle allows MSM to be widely distributed in the fluid and tissues of all living organisms. Which means it is becomes available to us in its natural form through raw, organic green plants, certain algae, a variety of fruits, vegetables and in raw fish and meat. If freshly picked organic foods were eaten immediately, we would perhaps get the amount of MSM we need daily. However, with even moderate processing organic sulfur is depleted. This can create a deficiency because MSM is not stored in the body. Excess amounts are excreted by the skin within 12 hours.
So, as you can see, you don't necessary have to take supplements IF you eat raw, fresh, organic foods grown on soil that is not depleted. MSM is naturally occuring and readily available. However it is virtually impossible for the majority of us to get sufficient amounts. Most of us, if we sat down and made a list actually only consume an average of 20 foods. We tend to eat the same things over and over and we do not get the variety of nutrients that our organs require.
I do have a friend who just had her fourth C-section and the doctor could not believe it because she had virtually no scar tissue. She credits MSM, however she does have a very wholesome diet, faithfully takes supplements and exercises - all of which can be contributing factors.