Sermorelin before and after: realistic results and timeline

Realistic sermorelin results are smaller than most before-and-after photos suggest. In the small adult trials, sermorelin injections reliably raised growth hormone, but body fat and muscle on scans barely moved (Vittone 1997, PubMed 9005976). Programs give timelines of weeks to months. Prescription programs start at $94 a month; see every sermorelin price.

Below: what changed in the published studies, what programs say to expect and when, why photos are a weak guide, and how to check your own "before and after" with lab tests instead of a mirror.

What sermorelin does, in one paragraph

Sermorelin is a synthetic copy of the first 29 amino acids of growth hormone releasing hormone. A drug review describes it as able to "specifically stimulate growth hormone secretion from the anterior pituitary" (Prakash and Goa, PubMed 18031173). It does not supply growth hormone; it asks your pituitary to release more of its own. Any result therefore depends on how well your pituitary still responds. It is not FDA-approved today: the former brand, Geref, was withdrawn from sale, and FDA found that was "not withdrawn from sale for reasons of safety or effectiveness" (Federal Register, March 4, 2013). It is not on FDA's category 2 list, and licensed pharmacies compound it on a prescription. Our FDA status guide has the detail.

Sermorelin results in the adult studies

Every program we track sells sermorelin to adults, so the adult trials are the fair "before and after". There are only a few, and all are small:

The Vittone team wrote that sermorelin "did not change weight, body mass index, waist to hip ratio, DEXA measures of muscle and fat" over 6 weeks, and concluded that single nightly doses "are less effective than multiple daily doses" (Vittone 1997). Most online programs use a nightly injection, the regimen that trial tested.

The Khorram trial ran longest. IGF-I, the blood marker most clinicians use to track growth hormone activity, rose within 2 weeks and "remained elevated for 12 weeks, returning toward baseline by 16 weeks in both genders." The authors also reported that "sleep quality was unaffected in both genders" (Khorram 1997, PubMed 9141536). That trial used a modified analog, [Nle27]GHRH(1-29), not sermorelin itself, so it is close evidence rather than direct evidence.

The Corpas trial was the most positive on hormone levels: it found that "short term sc administration of GHRH to healthy old men reverses age-related decreases in GH and IGF-I" (Corpas 1992, PubMed 1379256). It lasted 14 days and used twice-daily injections, and it did not measure fat or muscle.

Taken together: sermorelin moves hormone levels in older adults. Changes you could see in a photo, less fat or more muscle, were small or absent in the trials that measured them. The largest adult trial we found had 19 people.

The timeline programs give

Providers publish their own expectations. These are marketing statements, not trial results, but they are what you will be told:

MadeMed adds that "optimal results typically seen at 3-6 months of consistent use" (MadeMed). The programs broadly agree on the order: sleep and energy reports first, body changes later, if at all. The early sleep claim sits awkwardly with Khorram, where sleep quality did not change over 16 weeks. None of these timelines comes from a controlled trial of the program's own product.

Why before-and-after photos are a weak guide

A photo cannot separate sermorelin from everything else that changed in the same months: diet, training, sleep, weight, lighting and posture. Programs that sell sermorelin often pair it with lifestyle coaching, other medications or testosterone, so a "before and after" may reflect the whole package. No trial we found published standardized photos.

Searches for sermorelin before and after on the face usually mean skin. The only skin result we found is from Khorram, which reported "a significant increase in skin thickness (P < 0.05) in both genders" (Khorram 1997). It was measured on the hands and forearm with calipers, not on the face, and with the analog rather than sermorelin. We found no human study of sermorelin and facial appearance, wrinkles or skin elasticity.

How to measure your own before and after

The fairest comparison is a lab test before you start and again a few months in. IGF-I is the marker the trials used, and a prescriber can order it. Some programs build labs in: Hone Health's membership includes regular lab testing, and MadeMed accepts recent results from a certified lab during the consultation. Many cheaper programs do not mention follow-up labs, so ask before you pay. The best programs page scores each program partly on whether it offers labs or monitoring.

Alongside labs, simple records beat memory: weight and waist measured the same way each month, sleep notes, and any training logs. If nothing has moved after the period your prescriber suggested, that is useful information too, and a reason to stop paying.

Side effects to watch for

In the drug review, "Transient facial flushing and pain at injection site were the most commonly reported adverse events" (Prakash and Goa). Vittone reported "No significant adverse effects were observed" (Vittone 1997), and Khorram reported "transient hyperlipidemia, which resolved by the end of the study" (Khorram 1997). System Labs lists "vivid dreams, mild redness at the injection site, occasional headache, or slight water retention in the hands and feet" (System Labs). These trials were too small and short to rule out rare or long-term problems. Your prescriber sets the form and amount; we do not publish doses.

What results cost

Results take months by every program's own account, so the price that matters is several months of treatment, not the first month. The cheapest program we track is Idun Rx at $94 a month (Sermorelin, 12 months, 12-month plan, listed per month (upfront billing not stated)), and the lowest monthly rates usually mean prepaying for a longer plan that is often non-refundable. Our sermorelin cost guide explains the plans and refund terms.

FAQ

Sermorelin before and after: what results are realistic?

Realistic results are higher growth hormone levels in blood tests, with modest or no visible change in body fat or muscle. In the adult trials, injections raised growth hormone, but a 6-week trial in older men found no change in fat or muscle on scans. Programs suggest sleep and energy changes in weeks and body changes after a few months, but those are marketing timelines rather than trial results.

How long does sermorelin take to show results?

Programs give different answers. System Labs says sleep "tends to shift in weeks 1 to 2" and body composition "may start around month 3", while Hone Health says effects "are usually felt in 2 to 6 months." In the Khorram trial, IGF-I rose within 2 weeks but returned toward baseline by 16 weeks, so a lab test is the clearest way to check.

What are typical sermorelin results for body fat and muscle?

Small, on the available evidence. The Vittone trial found no change in weight or in muscle and fat measured by DEXA after 6 weeks, though two strength measures improved. The Khorram trial, using a close analog for 16 weeks, found more lean mass in men only and no change in body weight. No large adult trial has shown lasting fat loss from sermorelin.

Does sermorelin change your face or skin?

Evidence is thin. One 16-week trial of a sermorelin analog found thicker skin in both sexes, measured with calipers on the hands and forearm. No human study we found looked at the face, wrinkles or skin elasticity, so facial before-and-after photos are not backed by published trials. Lighting, weight change and other treatments can explain much of what such photos show.

Is sermorelin FDA-approved?

No, not today. Sermorelin was approved as Geref, which was withdrawn from sale, and FDA later found that was not for safety or effectiveness reasons. It is not on FDA's category 2 list of substances with significant safety risks. Licensed 503A pharmacies compound it on a clinician's prescription, and our FDA status guide explains the basis.

What happens to results when you stop sermorelin?

No trial we found followed adults after stopping. Because sermorelin works by prompting your own pituitary, and IGF-I drifted back toward baseline even during treatment in the 16-week Khorram trial, any hormone change would be expected to fade after stopping. MadeMed's own page compares it to fitness, saying results "are maintained through consistent effort." Ask your prescriber how they would check.

Compare prescription sermorelin programs on price, labs and oversight on our best peptide programs page, or see every plan on the price table.