I believe it's a legal motivated response to detract any responsibility if someone does become hurt from using it. That way if they were ever taken to court they can reference back on memos/releases like this. Hell yeah they know BBs use it. They're accepting the money to fill orders. If they are so concerned about humans using it, then why don't they do their due dilligence on their customers? Money is evil..... But I l believe r3IGF-1 is safe in a healthy adult. All prop BBs have used it since the early to mid 90's. That's 10 or so years of human self trial. Damn Gropep is making tons of money. Once it gets scheduled, the fun is over for them...It'll go UG and eventually become cheaper.