What Is Sermorelin? An Evidence-Based Guide for Women

If you’ve come across sermorelin on social media touted as an anti-aging “cure-all,” you might be wondering: “What is sermorelin?” This prescription peptide is a synthetic growth hormone-releasing hormone (GHRH), meaning it’s a lab-made version of a natural hormone that triggers your body to release more of its own human growth hormone (HGH). 

Although it was originally approved by the FDA as a medication for kids of short stature who needed some help growing, sermorelin peptide is now sometimes discussed alongside testosterone or hormone replacement therapy (HRT, now commonly referred to as menopause hormone therapy, or MHT) for women in midlife dealing with menopause symptoms. 

Many experts consider sermorelin a safer alternative to HGH therapy because it stimulates your body to make its own natural growth hormone. This keeps the body’s natural feedback control in place, which is thought to help explain its improved safety profile. Of course, HRT remains an option for many women in midlife, too.

Sermorelin’s potential benefits are largely drawn from evidence on taking growth hormone directly, as well as from anecdotal reports and small studies—with reports of improved memory or cognition, better muscle mass and athletic performance, and/or more energy—all certainly appealing in these midlife years. 

Booking a visit with a Midi clinician can give you a full sense of the benefits and risks and help you decide which care solutions are right for you. Keep reading to learn more about sermorelin.

What Is Sermorelin?

Sermorelin is a lab-made peptide that mimics GHRH, essentially replicating the signal your brain sends to your pituitary gland, telling it to release more of your body’s native growth hormone, explains Midi’s Vice President of Clinical Operations Ava Mainieri, PhD. “So instead of adding hormones from the outside, it encourages your body to make more of its own, in its natural nightly rhythm, while keeping your body’s built-in checks and balances in place,” she says.

To get more technical about it, this man-made peptide replicates the first 29 amino acids in natural GHRH—the active portion that triggers the pituitary gland to make HGH. This makes it what clinicians call a growth hormone secretagogue, meaning it stimulates the release of another compound—similar to three other peptides: ipamorelin, tesamorelin, and CJC-1295. 

Many people ask, “Is sermorelin a steroid?” Nope. It’s not a hormone replacement treatment, either—remember, it’s a peptide that stimulates your body to make more HGH. But unlike some other peptides popping up these days, the sermorelin peptide has been used for decades and has undergone the rigor of FDA approval in 1997, so its safety is pretty well-established. 

In fact, it was FDA approved for use in adolescents at one point, although its manufacturer voluntarily discontinued production in 2008 for commercial reasons. Today, this same peptide is made by other pharmacies. (More on this later.)

How Does Sermorelin Work in the Body?

Sermorelin works as part of the endocrine system of glands and hormones that send chemical messages through your blood. 

When it’s injected, sermorelin mimics the way that the hypothalamus in the brain naturally sends GHRH to the pituitary gland, telling it to produce and release HGH. As a GHRH dupe, sermorelin triggers the pituitary gland to send out that HGH in little bursts, mostly during deep sleep.   

Once HGH is in your blood, the liver makes a hormone called insulin-like growth-factor 1 (IGF-1). This is what clinicians typically measure to check growth hormone activity, since it’s more stable than HGH itself.

Levels of HGH start to go down once you’re done growing after adolescence, and they continue to drop off in our midlife years and beyond. Experts believe this is at least partially responsible for some of the typical effects of aging, like muscle loss, bone breakdown, and fat redistribution.

Sermorelin vs. HGH: What Is the Difference?

While sermorelin tells your body to make more natural HGH, recombinant HGH (a prescription medication that’s a lab-made growth hormone) injects that growth hormone directly into your system. 

That means, with sermorelin, the body’s usual feedback systems are working—including the brakes that limit how much HGH gets released. This is why some people say it can be “gentler” than taking synthetic HGH, which doesn’t have those same constraints: Since synthetic HGH gets added manually regardless of your body’s signals, it can potentially lead to swelling, joint pain, insulin resistance, and carpal tunnel. 

Some endocrinology experts, however, say sermorelin can, in theory, carry the same risks when taken long-term. And the reality is that there’s no research directly comparing sermorelin and HGH. However, while studies have shown that taking growth hormone itself raises the risk of developing diabetes, this hasn’t been seen with sermorelin use. 

Is Sermorelin FDA Approved?

Sermorelin was originally developed under the brand name Geref. The FDA approved it to diagnose and treat growth problems in kids in 1997. In 2008, the company discontinued Geref for commercial reasons (not for safety or effectiveness concerns). As a result, sermorelin isn’t currently sold as an FDA-approved drug. (Nor is it considered a controlled substance by the U.S. Drug Enforcement Administration.) 

Instead, it’s prescribed by clinicians and fulfilled through compounding pharmacies. That’s why it’s essential to use a reputable pharmacy that is certified in sterile, safe, and consistent manufacturing practices. And it’s important to take sermorelin with oversight from a licensed clinician.

Midi works exclusively with certified partner pharmacies that undergo rigorous third-party testing for purity, potency, and safety. Midi clinicians will prescribe medications through vetted pharmacies with these assurances in place on safety and dosing.

Why Is Sermorelin Marketed to Midlife Women?

Some consider sermorelin for women a safe way to counteract the natural decline in growth hormone. 

“As we move through midlife, our bodies make less growth hormone,” Dr. Mainieri explains. “That drop can show up as fatigue, losing muscle, slower recovery after workouts, poorer sleep, and more fat around the middle.” 

In particular, sermorelin is often positioned as an alternative to taking testosterone, thanks to its lineup of purported benefits, which include: 

• Body composition: fat loss, faster metabolism, and more muscle mass
• Recovery: quicker bounce back after exercise or injury
• Skin: more youthful appearance (and potential hair health benefits, too)

For women going through perimenopause and menopause, promises of these sermorelin peptide benefits can hit home: As estrogen and progesterone fluctuate and decline, the skin can lose collagen and moisture, fat can get redistributed to the midsection while muscle mass diminishes, and the body can struggle to recover the way it used to. 

However, it’s important to recognize the role of declining sex hormones behind some of these midlife changes, and it's not necessarily from changes in growth hormone. That’s why it’s important to discuss your options with a menopause-trained clinician. It’s important to note, too, that the evidence supporting these claims in women is limited. 

What Does the Evidence Actually Show?

The bulk of the research on sermorelin has been done on children with an HGH deficiency; some studies, such as one published in September 2001 and one published in December 2001, have looked at sermorelin results in older adults. In part, the science is informed by evidence on HGH itself. 

“Sermorelin has a longer track record than many newer peptides, but the research on how most adults use it today is still limited,” Dr. Mainieri says. 

Here’s an overview of some of the science to date:

• Body composition: Preliminary evidence shows that sermorelin may have potential benefits. For instance, a study on older adults found that daily injections of GHRH (the hormone that sermorelin mimics) produced an increase in lean body mass and a decrease in body fat, particularly in abdominal fat. More research is needed.
• Emotions: GHRH may influence brain chemistry. One small study found that a synthetic GHRH increased levels of GABA, a neurotransmitter that helps regulate brain activity and emotional responses.
• Recovery: No large trials have been done, but animal studies and indirect evidence suggest that increasing growth hormone levels speeds up tissue repair and resolves inflammation.  
• Skin: There’s some evidence that stimulating HGH has a positive impact on skin: A small study found that injecting a peptide similar to sermorelin increased skin thickness. And a recent lab study found that HGH may protect skin from ultraviolet-B-induced damage that causes fine lines and wrinkles. 

To be clear, while there is solid evidence that sermorelin can increase growth hormone IGF-1 levels, the peptide cannot “treat” aging: There’s no proof of long-term longevity benefits. 

Another thing to know about sermorelin results: “It’s not an overnight fix,” Dr. Mainieri says. “Benefits tend to build over weeks to months.”

How Is Sermorelin Dosed and Administered?

Sermorelin is a small injection you give yourself at bedtime, on an empty stomach, typically 5 nights per week. This timing lines up with the body’s natural growth hormone secretions during deep sleep. Clinicians recommend injecting it into your belly or thigh. 

Compounded sermorelin typically comes as a freeze-dried powder, and it needs to be mixed with bacteriostatic water. A healthcare professional will prescribe the right sermorelin dosage—generally starting at 0.2 milligrams (mg)—depending on individual factors like your health history and weight. 

Since there are some theoretical concerns over elevated IGF-1 leading to cancer development, Midi clinicians will ensure that a patient’s levels are normal, then recheck the levels every 3 to 6 months while a person is taking the peptide. If IGF-1 levels go up, they’ll decrease the sermorelin dosage (and potentially refer to an endocrinologist). A clinician may recommend cycling the medication, taking breaks, or using it for only a few months. 

Sermorelin Side Effects and Who Should Avoid It

The most common sermorelin side effects are:

• reactions at the injection site, like redness or irritation
• headaches 
• light dizziness

A few less likely but important concerns include:

• allergic reactions like itching or trouble swallowing
• mild swelling
• reduced insulin sensitivity
• pushing IGF-1 levels too high
• theoretical risk of tumor growth

Before prescribing sermorelin, Dr. Mainieri says Midi clinicians will review a patient’s health history and order labs. Along with IGF-1, “we'll check TSH levels because an untreated underactive thyroid can blunt your response. We’ll also check prolactin to screen for pituitary issues, and HbA1c to get a baseline on blood sugar,” she says. 

Reasons that sermorelin wouldn’t be a fit include: 

• pregnancy, breastfeeding, or plans to get pregnant
• under age 25
• known pituitary tumors
• active cancer treatment (unless explicitly approved by an oncologist)
• having an IGF-1 that’s already high

While people with diabetes can take sermorelin, it’s essential to monitor blood glucose closely, because it has a potential effect on insulin. It’s important that the clinician managing your diabetes care is aware if you use sermorelin.

Also: Untreated hypothyroidism or taking prednisone or Levodopa can make sermorelin less effective. So make sure to flag any medical issues, medications, and supplements you’re taking with your clinician.

How Much Does Sermorelin Cost?

Since sermorelin is available as a compounded medication from a specialty pharmacy only, insurance does not typically cover it. You’ll often spend anywhere from an estimated $100 to $500 per month, depending on factors like dose, vial size, whether it’s combined with any other peptides, and whether you go through telehealth or an in-person clinic. (The price may not include consultations and lab work.)

Although it might be tempting to save money by buying “research-grade” (also known as “gray market”) sermorelin online without a prescription, that can be risky. These sellers may skirt important federal regulations, and the product could be low quality with purity issues—and without a clinician, you might not be taking the safest, most effective dose or have the needed clinical oversight. 

Sermorelin vs. Other Options for Midlife Symptoms

If you’re dealing with symptoms of perimenopause and menopause, many treatments have been proven to help.

For instance, HRT is the first-line treatment for hot flashes and night sweats—and getting better sleep has the trickle-down effect of boosting your energy and speeding up recovery. Meanwhile, GLP-1 medications have a proven track record for supporting weight loss, body composition, and metabolic health. 

Lifestyle interventions like strength training and eating adequate protein can boost muscle mass. Cognitive behavioral therapy for insomnia can also naturally bolster growth hormone release by supporting the deep sleep phase when it gets released. 

A healthcare professional, like a Midi clinician, can help you figure out whether a peptide like sermorelin might fit in as an adjunct to these well-established strategies, or an alternative if proven methods aren’t working for you or aren’t an option. 

Talking With a Clinician About Sermorelin

If you’re curious about trying sermorelin, book a visit with a healthcare professional who’s an expert in midlife health, like a Midi clinician. Come prepared to talk about the symptoms you want to solve, and ask what options are available, what labs or screening are needed, possible side effects, and what you might be able to expect. 

Before prescribing a peptide like sermorelin, your clinician will make a holistic assessment of your symptoms and look at your hormone levels, sleep habits, weight, cancer history, and current medications. They can also order any needed lab work.

As a virtual option in network with most major insurance plans nationwide, Midi is a convenient way for you to get all of your questions about midlife health answered and come away with an individualized Care Plan that can help get you to your healthiest self. 

Key Takeaways

• Sermorelin is a prescription peptide that triggers the pituitary gland to release human growth hormone (HGH).
• People are interested in sermorelin’s potential benefits for energy, sleep, boosted lean muscle mass, and more.
• Research on the benefits are limited, but research on HGH and GHRH (the hormone that sermorelin mimics) has shown potential benefits, including for body composition, recovery, brain chemistry, and skin health.
• Sermorelin was approved by the FDA for kids with stunted growth but now is prescribed off-label and created by compounding pharmacies. It has a long and very solid safety profile.

Frequently Asked Questions (FAQs)

Is sermorelin similar to Ozempic?

Both sermorelin and Ozempic are peptides, but they aren’t the same. Sermorelin is a lab-made peptide that stimulates the pituitary gland to release growth hormone. This potentially may support lean muscle mass and reduce abdominal fat, but sermorelin is not a weight loss medication. Ozempic is FDA approved to treat type 2 diabetes and has the ability to significantly bring on weight loss. 

Why was sermorelin banned?

Sermorelin was not banned. The FDA-approved version (Geref) was discontinued for commercial reasons in 2008, but it continues to be legally prescribed off-label. 

What happens when you stop taking sermorelin?

After you stop taking sermorelin, your levels of growth hormone and IGF-1 gradually drift back to their natural, baseline levels. There doesn’t appear to be any negative effects to stopping sermorelin, but it’s always best to consult a clinician before you discontinue any medication.

How long does it take for sermorelin to work?

It can take 3 to 6 months to notice changes with regular sermorelin injections. 

Is sermorelin covered by insurance?

Insurance coverage for sermorelin is extremely rare, since it’s seen as an elective wellness treatment rather than a medical necessity, and it’s not currently an FDA-approved drug for adults. The vast majority of people prescribed it pay for it out of pocket. 

For educational purposes only; not medical advice. Compounded drug products are not FDA approved. The FDA does not evaluate compounded drug products for safety, effectiveness, or quality. Prescription products require an online consultation with a healthcare professional, who will determine if an individual is eligible for a prescription if medically appropriate in their independent clinical judgement. Full safety information, provider consultation requirements, and restrictions, are available at https://www.joinmidi.com/.