# Sermorelin for beginners Sermorelin was once an approved medicine. Today’s compounded preparations are not. Promise Peptides prescribes now. U.S. patients only. A licensed U.S. provider reviews each request and decides. Not everyone qualifies. Availability varies by state and treatment. Compounded medicines are not FDA-approved. [Visit Promise Peptides for sermorelin](https://mypromise.com/products/sermorelin?utm_source=neo&utm_medium=affiliate&utm_campaign=starter&utm_content=sermorelin). Neo may earn money when readers become Promise patients. ## The short version **Sermorelin** is a lab-made peptide, a chain of twenty-nine amino acids. It copies the first part of a hormone your brain makes, called **growth hormone-releasing hormone**. That hormone's job is to signal a small gland under the brain to release growth hormone. So sermorelin is not growth hormone. It is a messenger that asks your own body to make and release more of it. Sermorelin was once an FDA-approved medicine. The maker stopped selling it. No approved sermorelin product is sold in the United States today. Any sermorelin prescribed now would be a compounded preparation, and compounded medicines are not FDA-approved. ## What sermorelin is Your body's own growth hormone-releasing hormone is forty-four amino acids long. It is made in the **hypothalamus**, a small area at the base of the brain. It travels a short distance to the **pituitary gland**, which sits just below, and prompts it to release growth hormone. Scientists found that the first twenty-nine links of that chain are enough to do the job. Sermorelin is that shorter piece, made in a lab. Researchers sometimes write it as GHRH(1-29), which simply means "links one to twenty-nine of growth hormone-releasing hormone". Because it acts at the pituitary, the body's own feedback on growth hormone still applies. That describes mechanism; it has not been shown to make long-term use safe. ## Its history as an approved medicine Sermorelin has a real FDA history, and it is often misstated online. - It was approved as a prescription medicine. Doctors used it to test how well the pituitary gland could release growth hormone, and to treat some children whose bodies did not make enough growth hormone to grow normally. - It was studied in children with growth hormone deficiency, the use it was once approved for. - The branded product was later taken off the U.S. market, and the FDA formally withdrew its approval in 2009 at the maker's request. - In 2013, the FDA published a notice finding that it had not been withdrawn for reasons of safety or effectiveness. That is a technical finding. It is not an endorsement, and it does not make today's sermorelin an approved drug. ## Where the research stands Unlike many peptides beginners hear about, sermorelin has been studied in people, mostly in children with growth hormone deficiency and in small studies of adults. - A small 1992 study in older men measured hormone levels in the blood over two weeks. It did not test effects on health or ageing. - The popular use today is different: adults seeking "anti-ageing" or body changes. That is not the use it was approved for. An editorial in the *Annals of Internal Medicine* judged using growth hormone boosters against ageing "not yet ready for prime time", and later reviews still find that the long-term evidence for this use is limited. ## Where sermorelin stands with the FDA No FDA-approved sermorelin product is on the market today. Any sermorelin prescribed now would be a compounded preparation. The compounder must separately decide whether the applicable rules allow it to be made. The FDA says plainly that compounded medicines are not FDA-approved, and that it does not check their safety, effectiveness or quality before they are sold. The old approval does not make today's compounded sermorelin an approved drug, and whether a particular compounded preparation may lawfully be made is decided under the compounding rules, not by that history. Sermorelin is also banned in sport at all times, along with other substances that boost growth hormone. ## What a prescription route looks like A licensed clinician looks at your health history, your other medicines and your conditions before anything is decided, and the answer can be no. If sermorelin is prescribed, a licensed pharmacy decides separately whether it can lawfully prepare it, and a prescription does not guarantee that it will. Any prescription now would be for a compounded preparation, not the old approved product. A research-only seller works differently: the vial is sold for lab research, labelled not for human use, and no one reviews your health. A 2026 review of peptides used in sport and bodybuilding reported that products from the unregulated market are often mislabelled or contaminated. ## What is not known - **Long-term effects in adults.** Large, long trials of adult use do not exist. - **Cancer.** Growth hormone and IGF-1 can encourage cells to grow, so raising them for a long time carries a theoretical cancer concern. This is a general caution for anything that acts on growth hormone. - **Blood sugar.** Growth hormone works against insulin. In a study of a related, longer-acting peptide, some older people handled sugar less well with repeated doses. - **Other effects seen in studies.** Mild irritation where the injection goes in was the most consistent side effect. Small, short-lived rises in other pituitary hormones were also seen, and in one children's study, giving it non-stop instead of in pulses made the response fade over a few months. ## Talking to a licensed clinician about sermorelin Promise Peptides is a U.S. telehealth platform. Promise prescribes peptides now through licensed U.S. providers. A licensed U.S. provider reviews every request and your health history, then decides whether to prescribe. Not everyone qualifies, and the answer can be no. Prescribed medicines are prepared by licensed U.S. compounding pharmacies. Each pharmacy separately decides whether it can lawfully prepare a prescription; a prescription does not guarantee it will be filled. Compounded medicines are not FDA-approved. [How Neo is paid for](https://neopeptides.com/about/#how-neo-is-paid-for) sets out the rest. U.S. patients only. Availability varies by state and by treatment. Promise is LegitScript-certified. That certification is not FDA approval. [Visit Promise Peptides for sermorelin](https://mypromise.com/products/sermorelin?utm_source=neo&utm_medium=affiliate&utm_campaign=starter&utm_content=sermorelin) Neo may earn money when readers become Promise patients. ## Sources 1. [Growth hormone-releasing hormone and its analogues in health and disease (Nat Rev Endocrinol, 2025)](https://pubmed.ncbi.nlm.nih.gov/39537825/). PubMed. 2. [Sermorelin: a review of its use in the diagnosis and treatment of children with idiopathic growth hormone deficiency (BioDrugs, 1999)](https://pubmed.ncbi.nlm.nih.gov/18031173/). PubMed. 3. [Thorner et al., J Clin Endocrinol Metab 1996: once-daily GHRH(1-29) therapy and first-year growth in GH-deficient children](https://pubmed.ncbi.nlm.nih.gov/8772599/). PubMed. 4. [Corpas et al., J Clin Endocrinol Metab 1992: GHRH(1-29) twice daily and GH and IGF-I levels in old men](https://pubmed.ncbi.nlm.nih.gov/1379256/). PubMed. 5. [Use of growth hormone secretagogues to prevent or treat the effects of aging: not yet ready for prime time (Ann Intern Med, 2008)](https://pubmed.ncbi.nlm.nih.gov/18981489/). PubMed. 6. [Growth hormone and aging: a clinical review (Front Aging, 2025)](https://pubmed.ncbi.nlm.nih.gov/40260058/). PubMed. 7. [Polyethylene glycol-conjugated growth hormone-releasing hormone is long acting and stimulates GH in healthy young and elderly subjects (Eur J Endocrinol, 2005)](https://pubmed.ncbi.nlm.nih.gov/16061831/). PubMed. 8. [Effects of acute intravenous injection of two growth hormone-releasing hormones on serum growth hormone and other pituitary hormones in short children (Horm Res, 1989)](https://pubmed.ncbi.nlm.nih.gov/2515143/). PubMed. 9. [Growth hormone profiles in response to continuous subcutaneous infusion of GH-releasing hormone(1-29)-NH2 in children with GH deficiency (Acta Paediatr Suppl, 1993)](https://pubmed.ncbi.nlm.nih.gov/8329829/). PubMed. 10. [Withdrawal of Approval of 92 New Drug Applications and 49 Abbreviated New Drug Applications, 74 FR 23407 (2009)](https://www.federalregister.gov/d/E9-11628). Federal Register. 11. [Federal Register notice on sermorelin acetate, 2013: not withdrawn from sale for reasons of safety or effectiveness, 78 FR 14095](https://www.federalregister.gov/d/2013-04827). Federal Register. 12. [Bulk Drug Substances Used in Compounding Under Section 503A of the FD&C Act](https://www.fda.gov/drugs/human-drug-compounding/bulk-drug-substances-used-compounding-under-section-503a-fdc-act). U.S. Food and Drug Administration. 13. [Compounding and the FDA: Questions and Answers](https://www.fda.gov/drugs/human-drug-compounding/compounding-and-fda-questions-and-answers). U.S. Food and Drug Administration. 14. [A new era of doping? Use of peptide and peptide-analog drugs in recreational and professional sport and bodybuilding: a critical review (J Sports Med Phys Fitness, 2026)](https://pubmed.ncbi.nlm.nih.gov/41880199/). PubMed. --- A plain-English guide. Not a clinic, not a pharmacy, not a seller. Neo points readers who want care to Promise Peptides. A licensed U.S. provider reviews each request and decides. Not everyone qualifies. U.S. patients only; availability varies by state and treatment. Compounded medicines are not FDA-approved. Neo may earn money when readers become Promise patients. Neo is not affiliated with any company that has used the name Neo Peptides or NeoPeptides.