People’s results from stacking two or more SARMs vary and differ, but most people begin seeing some positive improvement once they’ve been on the SARM for at least a few days. Most people start feeling the effects of SARMs within 48-72 hours, and start actually physically seeing results of SARMs within a few weeks.
This is all assuming that the person who’s taking the SARMs is doing a good job of making sure to exercise and eat right. You need a large amount of protein to build the amount of muscle that you take SARMs to build. It won’t happen easily or overnight, not even with supplements. You’ll have to be in the gym for weeks and months if you want to get ripped.
SARMs make it easier, however. Your efforts do go a little further, and it makes things, overall, a bit more convenient than they would be otherwise. You can expect to build much more muscle on SARMs than you would be able to without the supplement.