They're just as dangerous. People are also taking DHEA supplements. DHEA is naturally produced by the adrenal gland. It comes from the pituitary and supposedly increases muscle and decreases fat. Some people can retard that process with growth hormone, but it's a two-edged sword.
Cells protect themselves against cancer naturally and, in doing so, decrease their reproduction.
Growth hormone increases cell reproduction, and a side effect of that process may inhibit an important defense against cancer. The NIH adds that hGH supplements may also cause diabetes, pooling of fluids in the skin, high blood pressure, heart failure, joint pain, and carpal tunnel syndrome.