Sermorelin: What It Is and What to Know Before Starting

Sermorelin is a short peptide that mimics growth hormone releasing hormone, the signal your brain sends to the pituitary gland to release growth hormone. Instead of adding growth hormone directly, it prompts your body to release its own, and it is given as a small injection under the skin, usually at bedtime.

A brand-name sermorelin was once FDA-approved and later discontinued by its maker. The compounded sermorelin prescribed today is not FDA-approved, and evidence for wellness use in healthy adults is limited.

How does sermorelin work?

Your hypothalamus releases growth hormone releasing hormone, which tells the pituitary gland to release growth hormone in pulses, mostly during deep sleep. Sermorelin is a fragment of that natural hormone. Because the body still controls the release, a 2006 review argued it may preserve the body's natural feedback loops better than giving growth hormone itself.

What does the research show?

Most sermorelin research was done in children and adults with growth hormone insufficiency, where it raised growth hormone release. Studies in healthy older adults have been small. That means people interested in sermorelin for energy, sleep or body composition should understand the evidence is limited and results vary.

How is it taken?

Sermorelin comes as a vial and is injected under the skin, usually at bedtime to match the body's natural rhythm. Your pharmacy label gives the exact amount. The Good Life Collective offers a 3 mg/mL, 5 mL vial for $189 a month, including the visit, provider review, supplies and shipping.

What are the side effects?

Reported effects include redness or swelling where you inject, flushing, headache, dizziness and trouble sleeping. Tell your care team if any effect bothers you or does not settle.

What should I expect in the first months?

Changes, if any, tend to be gradual. Some people notice differences in sleep first; others notice little. Your provider may suggest checking certain labs before or during treatment and will review how you feel at follow-ups. Keep a short note of sleep, energy and any side effects so your check-ins are useful, and message your care team if something does not feel right.

Who should not use it?

People with active cancer or a history of cancer, unless their provider approves, should not use sermorelin, because growth signals could affect tumor growth. It is not for use during pregnancy or breastfeeding, and untreated thyroid disease should be addressed first. Sermorelin can be prohibited in tested sport.

Frequently asked questions

Is sermorelin the same as growth hormone?

No. Sermorelin prompts your body to release its own growth hormone, while growth hormone therapy gives the hormone directly.

Why is sermorelin taken at night?

The body releases most growth hormone during deep sleep, so bedtime dosing follows that natural rhythm.

Is sermorelin FDA-approved?

The compounded sermorelin prescribed here is not FDA-approved. A brand-name version was approved in the past and later discontinued.

Can athletes use sermorelin?

It can be prohibited in tested sport. Check the WADA Prohibited List and your sport's rules before starting.

Talk to a licensed provider

Adults in Florida and Georgia can start a secure online visit. A licensed provider reviews your history and decides whether sermorelin is appropriate for you. Results vary.

This article is educational and is not medical advice. Rx programs require an online visit with a licensed provider. Results vary.