A lot of myths surround injectable hGH and its effects on athletes. Here are some risks you should be aware of. If you buy what may be called "growth hormone," "growth stimulator" or "growth factors" online, it's likely they're not really hGH. Many websites claim to be selling growth hormone, but they're really selling amino acids that don't significantly increase growth hormone levels in your body. Also there's a risk of contracting HIV or other diseases (like hepatitis) if people share needles, because human growth hormone can only be injected, like many steroids.