How do prohormones work?
Basically, when they are administered into the system, they are broken down in the liver and converted to their target hormone via certain enzymes. There have been a number of quotes describing how much of the hormone is converted, but there is no definitive answer as to how much of the prohormone is converted into its target active. Once a certain amount is created, the enzymes used for conversion become saturated and no more can be converted. This is true with all the compounds, except for 1-testosteron which really isn’t a prohormone.