a prominent body builder posted this about IGF-1 and HGH use claiming that introducing IGF-1 aside from what is produced naturally with HGH use is highly dangerous and will cause cancer. Opinions? is this common knowledge?
https://www.facebook.com/notes/mahm...-growth-hormone-misconception/262554220423815
https://www.facebook.com/notes/mahm...-growth-hormone-misconception/262554220423815