You should start by contacting a hormone clinic. You are able to purchase Growth Hormone (HGH) through a pharmacy with a prescription for GH, if the prescription is from a licensed and insured doctor. Most HGH clinics which prescribe Growth hormone require you a basic physical exam and lab work. The lab work is what gives the physician an idea of what kind of Growth Hormone deficiency you might have. This is measured by the insulin-like growth factor blood test known as IGF-1 for short. If your IGF1 is lower than 199 score you are a candidate for Growth Hormone replacement shots. Be aware that HGH is very expensive, a 3-month injections program can run about $3500 and 6-month programs about $7000, depending on the dosage prescribed. There are a number of HGH clinic directories out there that can help you find the right clinic for you.