Human growth hormone (HGH) is a prescription medication in the United States, and getting it legally requires a diagnosed medical condition, a doctor’s order, and ongoing monitoring. There is no legal way to buy HGH over the counter or without a prescription. Distributing or possessing HGH with intent to distribute for non-medical purposes, such as anti-aging or bodybuilding, is a federal felony carrying up to five years in prison under the 1990 Anabolic Steroids Control Act.
Who Qualifies for an HGH Prescription
HGH is FDA-approved for a specific set of medical conditions, not general wellness or performance goals. In children, there are eight approved uses: growth hormone deficiency, Prader-Willi syndrome, Turner syndrome, Noonan syndrome, chronic kidney insufficiency, being born small for gestational age without catch-up growth, idiopathic short stature, and SHOX gene haploinsufficiency. In adults, the primary approved use is growth hormone deficiency caused by pituitary disease, pituitary surgery, or radiation therapy.
If you suspect you have a growth hormone deficiency, the path starts with your primary care doctor, who will typically refer you to an endocrinologist. This is a specialist focused on hormone-producing glands. For children, a pediatric endocrinologist handles the evaluation. These specialists run the diagnostic tests, write the prescription if warranted, and manage dosing over time.
How Growth Hormone Deficiency Is Diagnosed
You can’t diagnose growth hormone deficiency with a simple blood draw. A single measurement of GH in your blood is essentially useless because the hormone is released in pulses throughout the day, so a random sample might catch a peak or a valley. Instead, doctors use stimulation tests that provoke your pituitary gland to release GH, then measure how much it produces.
The gold standard is the insulin tolerance test (ITT). During this test, insulin is injected to lower your blood sugar, which normally triggers a surge of growth hormone. If your peak GH response stays below 3 micrograms per liter, that confirms severe deficiency. Other options include the glucagon test and a newer oral test using a drug called macimorelin. Your doctor will also check your IGF-1 level, a protein in your blood that reflects overall GH activity. IGF-1 is a useful screening marker, but it has limits: 30 to 40 percent of adults with confirmed GH deficiency still show IGF-1 levels in the low-normal range.
Doctors don’t rely on test results alone. They look for structural evidence of pituitary disease on an MRI, a history of pituitary surgery or radiation, or deficiencies in other pituitary hormones. If you have clear structural pituitary damage plus other hormone deficiencies, a low IGF-1 alone may be enough to confirm the diagnosis without a stimulation test.
What HGH Treatment Looks Like
Prescribed HGH comes as a daily or weekly injection you give yourself at home, typically using a prefilled pen similar to an insulin pen. There is no pill form. Growth hormone is a protein that would be digested if swallowed, so any product sold as an “HGH pill” or oral spray does not contain actual growth hormone.
The cost is significant. Based on published formulary pricing, most brand-name somatropin products (the generic name for synthetic HGH) run between $4,500 and $14,000 per year, depending on the brand and dose. Some formulations cost more. Insurance may cover part or all of this if you have a documented medical diagnosis, but prior authorization is almost always required, and approval can take time. Without insurance, you’re looking at hundreds of dollars per month at minimum.
Common side effects include joint and muscle pain, swelling in the hands and feet, carpal tunnel syndrome, and increased insulin resistance that can progress to type 2 diabetes. In men, breast tissue enlargement is possible. There is also a documented increased risk of certain cancers with long-term use. Your doctor will monitor blood sugar levels, IGF-1, and other markers regularly throughout treatment.
Why “Anti-Aging” HGH Clinics Are Risky
A growing number of clinics market HGH therapy for anti-aging, energy, fat loss, or muscle building. Federal law specifically prohibits prescribing HGH for these purposes. The DEA has noted that illicit HGH distribution frequently involves physicians prescribing it off-label without proper examination or ongoing supervision. Even if a clinic gives you a blood test and calls it a “deficiency,” prescribing HGH for anything other than an FDA-approved condition puts both the doctor and the patient in legal jeopardy.
Products purchased online from unregulated sources carry additional risks. They may contain no actual growth hormone, the wrong dose, or contaminants. There is no quality control for black-market injectables.
Growth Hormone Peptides and Secretagogues
Some people look into peptides that stimulate your own pituitary gland to produce more growth hormone, rather than injecting synthetic HGH directly. Sermorelin and tesamorelin mimic the natural signaling hormone that tells your pituitary to release GH. Another compound, ibutamoren (MK-677), works through a different receptor but produces a similar effect.
None of these are FDA-approved for general use. Some have been available through compounding pharmacies by prescription, and others are sold online as “research chemicals” or supplements. The regulatory landscape for these peptides has been tightening, with the FDA cracking down on certain compounded peptides. Their long-term safety profiles are not well established, and they carry many of the same risks as HGH itself, including insulin resistance and fluid retention.
Raising HGH Levels Naturally
Your body produces growth hormone on its own, and several lifestyle factors meaningfully influence how much it releases.
Sleep
The largest natural pulse of growth hormone happens during deep sleep, specifically stages 3 and 4 (slow-wave sleep). In healthy men, peak GH levels during slow-wave sleep average around 27 nanograms per milliliter. Restless sleepers produce less. When deep sleep is delayed or disrupted, the GH surge is delayed or blunted. Prioritizing 7 to 9 hours of quality sleep, in a cool, dark room with consistent timing, is the single most impactful thing you can do for natural GH output.
Exercise
High-intensity exercise triggers a significant spike in growth hormone. Research shows the effect has an intensity threshold: exercise above your lactate threshold (the point where your muscles start burning and you can’t hold a conversation) for at least 10 minutes produces the strongest GH response. Sprint intervals, heavy resistance training, and circuit-style workouts all cross this threshold. Moderate steady-state cardio produces a smaller response.
Fasting
Short-term fasting substantially increases growth hormone secretion. A five-day fast roughly tripled 24-hour integrated GH concentrations in one study, with pulse frequency rising from about 6 to 10 pulses per day and peak amplitude doubling. You don’t need to fast for five days to see an effect. Even overnight fasting and delaying breakfast by a few hours allows morning GH pulses to remain elevated, since eating (especially carbohydrates) suppresses GH release.
Body Composition
Excess body fat, particularly abdominal fat, suppresses growth hormone production. The diagnostic cutoffs for GH stimulation tests are actually adjusted based on BMI because heavier individuals naturally produce less GH in response to stimulation. Losing body fat through diet and exercise can restore more robust GH secretion on its own.
These natural strategies won’t produce the same GH levels as pharmaceutical injections, but for someone without a true deficiency, they represent the safest and most sustainable way to optimize growth hormone output.