You can build a good, thick, strong foundation of solid and NATURAL muscle fibers before you decide to start juicing. The question is: "How long can you hold out?"
If you don't put in a good solid 2-5 years, and you decide to start juicing right out of the pen (pin?) ~ whatever you gain will easily be lost.
Most young kids nowdays don't have the balls or commitment to stick with a good natural "base/foundation" protocol. Everyone wants everything YESTERDAY!
I put in 6 years of solid lifting. All food and rest, no drugs, no supps, just heavy lifting. I still have that muscle today. Actually, I have more.
I had managed to get up to 220 @ 16% bodyfat with 19 inch arms. Then I dieted down to 176 with 16 inch arms. I realized that I had over-dieted and over-exercised (cardio/aerobics) ~ I was doing too much competitive swimming to gain muscle (bodybuilder type muscle) and I had to physically be pulled out of the pool.
I regained up to around 182 with 17" arms naturally... and then I did my first cycle. I blew up to 196 with 18.5" arms and a total 8 pack ab set up.
I did this cycle a couple of times and finally settled down to a natural status of 182 @ 10% bodyfat. My arms are somewhere around 17" and my abs are in place. I'm also a lot older now.
Been lifting for nearly 18 years and swimming for 38.
I would love to be looking like Jose Raymond or Ronnie Rockel, but once you get to be my age, you know it's only going to end you. I might as well start smoking and drinking.
Who wants to wake up dead? (I think I was too good of friends with Don Youngblood)