The serum is a success and transforms Steve Rogers into a nearly perfect human being with peak strength, agility, stamina, and intelligence. The success of the program leaves Erskine wondering about replicating the experiment on other human beings. The process itself has been inconsistently detailed: While in the original material Rogers is shown receiving injections of the Super-Serum, when the origin was retold in the 1960s, the Comic Code Authority had already put a veto over graphic description of drug intake and abuse, and thus the Super-Serum was retconned into an oral formula.