Nope, likely not
Probably, as you said, as nice little cocktail of hard drugs plus whatever fillers and random powders made from god knows what are put in there. Oh yeah, like that competitive bodybuilder that went on This Morning a few years ago, whinging that steroids ruined his life, made his heart explode and all that jazz... a bit of research brings up a bunch of videos and stuff about how anyone that knows him knows he had a cocaine addiction at the time, which he likes to quietly brush under the carpet.
Yeah, the whole "you don't have to train as hard or eat as strict on roids" idea is total BS. It's basically an enhancer that multiplies your results. If you half-ass your training and don't eat enough to gain, then you don't gain, simple as that really. They also work by increasing protein turnover rate, meaning you have to eat a lot of protein to take advantage of them otherwise they can't do their job. The guys I know who are on them as well train 5 or even 6 days a week and train their arses off, you can't get away with that so much as a natty.
Granted, there are a lot of people who use them to pick up the slack in their training or diet and the drugs will help, but these are the guys who just look decent but still well within natural limits. You could get the results they're getting all naturally if you put the effort in and you'd save yourself money and potential health problems.
Think I said before that I go to two different gyms, one is a hardcore backstreet gym and the other is a chain. The lads at the chain gym make me laugh. Openly discussing their steroid use because it makes them feel bad-ass, and they have to brag about it because you wouldn't know otherwise. I was talking to one of them and he simply would not believe that I've not used anything, because he's banging in a gram of testosterone a week and he still looks small compared to me
but I've seen him train and I've asked him what his diet is like and it's clear to see he's just wasting his money on the drugs, because he's clueless - "I just eat when I'm hungry" isn't the answer I expected to hear
I did try and explain some basics to him but you know, you can just tell when someone isn't really taking it in haha.