Alright seriously WTF are they putting in the water in Korea? That mofo has a sick chest and huge tris. If he could bring his rear delts and traps up he'd be awesome. This is why I DONT think he is using synthol, he'd already have those parts. These Koreans have builds like flex wheeler,small waists with full muscle bodies.
I haven't seen too many Chinese or Japanese BB's (hide excluded) that can get that big.
.....The second guy looks sythol free to, huge bi's but no cuts, nothing really indicative of sythol though. JMO.