Teens are buying more of the Sarms which help to build muscle, such as LGD and Ostarine. The compound Amos had In his urine is more popular with the bodybuilding community. But they are all pretty much available from the same retailers, because the peptide “companies” have figured out the market and people just buy them all for research purposes. I know that in the US, as long as someone orders these compounds for research purposes and not for human use (no other explanation currently legally needed) , it’s within the bends of the federal law.
The compound Amos had in his sample, GW1516, isn't that popular with the bodybuilding community.
The current trend is that LGD, MK & Ostarine (SARMs) are popular with the younger lifters at the gyms while TRT/HRT shows favor with the older lifters.
GW1516 is an endurance drug - it was originally touted as "exercise in a pill. It had some remarkable effects in the mice studies but it was also shown to cause cancer in some of the mice:
You really have to wonder what athlete would take this with such a long glow time. Just one 15mg pill can be detected in the urine for up to 40 days. Lol