Serge probably never touched half the steroids or GH as KHAN, no clen, no T3. Imagine Serge with today's drugs.
I don't know what Serge did, but im pretty sure he did T3 like everyone else in 70s
Also he was poster boy for tren. He was the distributor
The first known incident with slin was in the 80s, when Beckles had a scare with it
Gh was also around from at least the 80s, but only discussed in 90s
Diuretics late 60s/70s
With time Serge must have experimented with new stuff, but back in the day, what a physique. He had a shrink-wrap look to his skin