A vial of sermorelin lasts as long as its milligrams allow. Divide the vial's strength by the amount used each day. That quotient is the answer in days.
The label sets the top half of that fraction. The prescription sets the bottom half. This page fills in both from published sources only.
The top number: what the label says a vial holds
FDA-approved sermorelin was sold as GEREF. It came in two vial strengths: 0.5 mg and 1.0 mg of sermorelin base per vial [1].
Its maker discontinued it in 2008. FDA withdrew the approvals effective June 18, 2009 [1].
In 2013, FDA ruled the withdrawal was not for safety or effectiveness reasons [1]. Sermorelin's compounding status rests on it being a component of that approved drug.
Compounded vials are not GEREF. Their strength is whatever the pharmacy label prints. The division works the same way on any label.
The bottom number: what studies actually used
GEREF was approved to treat growth failure in children [1]. For adults, the only public amounts are the ones studies used.
A 1997 trial gave 11 healthy men aged 64 to 76 nightly injections of 2 mg GHRH [2]. Treatment ran 6 weeks.
A 2017 chart review describes sermorelin as a growth hormone-releasing hormone analog [3]. Its patients were prescribed 100 mcg three times daily [3].
That regimen combined sermorelin with two other peptides, GHRP-2 and GHRP-6 [3]. Only 14 of 105 men met its inclusion criteria.
A third 1997 trial used an analog at 10 mcg per kg nightly [4]. That amount depends on body weight. So no per-vial figure is computed for it here.
The division, done
| Study amount | 500 mcg vial | 1000 mcg vial |
|---|---|---|
| Vittone et al., 1997: 2 mg GHRH once nightly, 11 men aged 64 to 76, 6 weeks | 25% of one day (0 full injections) | 50% of one day (0 full injections) |
| Sigalos et al., 2017: 100 mcg sermorelin three times daily, with GHRP-2 and GHRP-6 | 1.7 days (5 full injections) | 3.3 days (10 full injections) |
At the 1997 trial's amount, even the larger vial falls short of one night. At the chart review's amount, it covers 3.3 days.
These are study amounts, recorded as findings. None is a dose this site recommends. Your prescriber sets yours.
What a month costs, beside the vial math
137 sellers publish a monthly sermorelin injection price. The typical figure is $185 a month. The range runs $99 to $349, read through September 2026.
Those are plan prices, not per-vial prices. Ask how many vials a month includes, and at what strength. Then run the division above.
Mixing and storage change how long a vial stays usable. See bacteriostatic water for peptides and how to store peptides.
For how sermorelin's cost compares with growth hormone itself, see sermorelin vs HGH. Every peptide's price board is on the prices page.