If you hope for better sleep or a change in body fat, start with what was measured and who took part.
Read the result with its limits
Findings you can put in context
A claim about higher hormone levels can sound like a claim about feeling better. Look for the outcome that matters to your concern.
These study notes use information checked in September 2026.
Children with a hormone shortage
Growth
A study published in 1996 began with 110 children diagnosed with too little growth hormone. The growth results were based on 86 of those children who met the study’s rules for that analysis. Those 86 children grew faster during treatment.
The information available for this guide does not say why the other children were left out of the growth results.
What that leaves open
The study did not include a second group of children given another treatment or no treatment as a comparison. Without that comparison, it is harder to tell how much of the change was due to sermorelin. The study did not test benefits for adults.
In a 1997 study of 11 older men, six weeks of nightly sermorelin injections raised growth hormone. Weight, body fat and the amount of muscle in the body did not change in that small study.
What that leaves open
A short study of this size cannot settle long-term benefits or harm.
A 1997 study in older adults used a version of sermorelin with a change to its chemical make-up. The study lasted 16 weeks and found no change in sleep quality. It did not test sermorelin itself.
What that leaves open
Other sleep studies injected the brain hormone that prompts growth hormone release into a vein. Older adults woke less often, but the sleep benefit was weaker than in young men.
Those study reports did not say which form of the hormone was used. These sleep studies did not test today’s pharmacy-made sermorelin products.
FDA reviews of other medicines that raise growth hormone discuss possible harm from high hormone levels. The concerns include higher blood sugar, extra fluid held in the body, and tumours, or abnormal growths in the body.
The FDA has not assessed sermorelin for adult use. These reviews do not show that sermorelin causes those harms.
Ask: could blood sugar problems, extra fluid or tumours be a concern for me? What signs would I watch for, and how would we check?
Putting the old product in context
Why does the old approval come up?
If an approval date appears on a care page, check which product and which use the date refers to.
Geref (sermorelin) was approved for a test of whether a gland below the brain could release growth hormone. It was also approved to treat children who grew too slowly because they had too little growth hormone. The FDA ended both approvals on 18 June 2009, after the maker requested it.
The FDA’s March 2013 finding ruled out safety problems or failure to work as the reason Geref (sermorelin) left the market. That finding does not approve today’s pharmacy-made products or show benefits for adults.
Tick the questions you want to raise, or print the full list to write on. There is no need to arrive with the answers.
Leave room to ask what an answer means in plain words.
Choosing the next setting
Online or in person?
If a visit leaves a question unanswered, ask what setting would help answer it.
National guidance for the bodies that license doctors calls for tests or an in-person exam when needed to check your health.
For an online visit, ask where the health professional is licensed to treat you and when an in-person visit would be needed. For an in-person clinic, ask who arranges tests and visits with a doctor who focuses on your health concern.