As a mitochondrial P450 system, P450c11 is dependent on two electron transfer proteins, adrenodoxin reductase and adrenodoxin that transfer 2 electrons from NADPH to the P450 for each monooxygenase reaction catalyzed by the enzyme. In most respects this process of electron transfer appears similar to that of P450scc system that catalyzes cholesterol side chain cleavage.  Similar to P450scc the process of electrons transfer is leaky leading to superoxide production. The rate of electron leakage during metabolism depends on the functional groups of the steroid substrate. 
In the end when we boil down all the hardcore facts when you aquire anabolic steroids online you are taking a pretty big risk on several different levels. Will the risk pay off in your favor? Well, with such purchases being so common the odds say yes but if you are one of the few to fall prey to legal action or a host of others who fall prey to garbage grade gear know that you were forewarned. In the end legal transactions will always be your best bet and your best mode of action is and will always be promoting steroid education, as it is only through education that the laws regarding steroids will ever be changed and then and only then will steroids be available in proper fashion for all who desire.