M1, 4 converts to methyl boldenone which is dbol. I have used both m1,4 and dbol at 50mg ED. The comparision I saw was pretty much 40mg/dbol = 50mg m1,4. Not so much of a diff, obviously. One GOOD thing I liked with the M1,4 as the fact that dbol makes me shed hairs LIKE CRAZY!!! No joke...