If they were all dosed correctly with the correct drug and were as clean as possible then there would be no comparison. You're right, 200mg of nandrolon is 200mg of nandrolone and 250mg os testosterone is 250mg of testosterone. The differences lie in the manufacturing company, not the actual drug. Human grade is for the most part a safe bet. It's when you compare vererinary AS that quality discrepincies are debated and factualized. Some may be underdosed, some may be no dosed, some may not be sterile, some may contain a whole different compound than what is stated on the label. You just don't know what you're getting. Companies like Organon, Schering, Norma, Zambon, Testex Spain, Ferring, Jelfa, ICN, and others that are soley human grade are going to be clean, properly dosed, and contain the actual drug/hormone. Comparing Portuguese sustenon to Indian Infars is simply an exercise in debate and a futile cause as they are both Organon products...The same thing. Comparing Brovel to Schering is a different storry.