A buddy of mine showed me this yellow box of steroids (not the amp itself, still not sure why) and claimed that it was an injectable form of dianabol. I can't quite remember the name, but I had never heard of it. The writing was in another language, not spanish, I can read that. I think it may have been french. I never did figure out what it was, I always figured it was a fake. Is it possible that it was dynabolin? I've read that a french or greek company packs it in a yellow box. Thanks