Not necessarily. Some times yes with size, sheer volume and brutal strength you get some nasty sides, tren is an example of side effects in a bottle so to speak. But then you have compounds like EQ , Primo, Masteron where though the gains are not mind-blowing in the amount the quality of the gains is. So it depends on what your definition of better is. Not to sound a prat but some times better isn't always bigger. Some of the newer compounds like Dihydroboldenone the results can be very impressive and with relativity few sides. I know some of the real gorillas in the gym are looking for sheer size, and measure their success by the tape, but there is a whole other side of the equation and that is final quality, and if the right compounds in the ratio with the right training and the right diet you can minimize the side effects and get super high quality gains. I can't speak fro every one but I would rather get 5 pounds of super clean pure lean mass then 15-20lbs of low quality watery mess that you end up keeping 5-10 of any way after deflating. Though I have mates that it doesn't matter to them as long as they look like refrigerators and feel like beasts they are fine. I would rather skip the middle man and shoot for the gains I know I can keep little by little adding high quality gains, rather then yo-yoing. Then you have the individual factor, some people get wicked sides from compounds where other people it doesn't phase. I am an example of this Tren, and me while I love the brutal bastard that is tren, when on it I am lucky to get 2-4hrs of sleep a night, while a close friend of mine nada on sides there but he gets hideous sides from Deca, and me nothing I love Deca. But I digress, Tren is great but as an all around, I would have to go with Test, it just ticks all the boxes with less spillage into side effects territory be sides every one love a wicked high libido that test brings.