Compounded (503A/503B)Also: Geref (historical brand), GHRH (1-29)

Sermorelin Dosage Chart

Adult clinic-convention pre-bed protocol, 5-day-per-week schedule, and reconstitution math for the 5 mg vial.

Written by
Megan Williams
Editor-in-Chief
Fact-checked by
Brian Williams
Co-founder & Research Editor
Last updated
April 25, 2026

Fact-checking at PeptideProbe is editorial, not clinical. Our editors check claims, dosing figures, and trial results against primary sources; they are not licensed clinicians and do not provide medical review. Nothing here is medical advice — talk to a qualified healthcare provider before starting any therapy.

Educational tool — not medical advice. This calculator provides estimates based on population averages and published trial data. Outputs are not clinical recommendations and do not replace evaluation by a qualified prescriber. Do not start, stop, or change a peptide therapy based on the result of this tool.

Sermorelin is a GHRH analog (residues 1–29 of native GHRH) with clinical-study history in pediatric growth hormone deficiency. It remains available through 503A/503B compounding pharmacies for off-label adult use, but adult wellness dosing is a different population and rationale than the cited pediatric study. Compared to CJC-1295, it has a shorter half-life and produces a more transient GH pulse.

Sermorelin at a Glance

Typical dose200–500 mcg subQ pre-bed (adult clinic convention)
Frequency5 days per week (clinic convention; Mon–Fri pattern is common)
Best timingPre-bed, 90+ min after last meal
Cycle length3–6 months commonly used in clinics; not derived from the cited pediatric study
FDA statusNo current FDA-approved sermorelin product. Adult use is off-label compounded.
Common vial size5 mg or 15 mg lyophilized powder

Sermorelin Reconstitution Chart

How vial size, bacteriostatic water volume, and insulin-syringe units convert for Sermorelin. Use this to translate a prescribed mcg or mg dose into a syringe measurement.

Vial sizeBac waterConcentrationDose → insulin-syringe units (U-100)
5 mg2 mL2.5 mg/mL (250 mcg per 0.1 mL)
  • 200 mcg8 units
  • 300 mcg12 units
  • 500 mcg20 units
15 mg5 mL3 mg/mL (300 mcg per 0.1 mL)
  • 300 mcg10 units
  • 500 mcg16.7 units (~17 units)

Sermorelin Dosing by Use Case

Commonly cited protocols vary by what Sermorelin is being used for. The table below summarizes typical ranges reported in clinical practice and published literature.

Use caseTypical doseFrequencyCycle lengthNotes
Adult wellness / GH support (clinic convention)200–500 mcgPre-bed, 5 days/week3–6 months continuous, then assessDefault off-label adult clinic protocol; not derived from the pediatric GHD study.
Sleep-support protocol (clinic convention)200 mcgPre-bed, 5 days/week8–12 weeksLower-dose clinic protocol focused on patient-reported sleep quality; not a studied indication in the cited source.

Stacking Sermorelin

In clinic/vendor protocols, sermorelin is sometimes paired with ipamorelin to combine GHRH and ghrelin-receptor activation, but no cited source here tests that combination. If comparing sermorelin with CJC-1295, treat that as a protocol choice in practice rather than a head-to-head outcome supported by these sources.

Where these numbers come from

The cited clinical study tested once-daily bedtime subcutaneous GHRH(1-29) at 30 mcg/kg/day in prepubertal children with growth-hormone deficiency for one year. It does not establish fixed adult 200-500 mcg anti-aging or sleep dosing; that is a different population, goal, and dosing rationale. The adult protocol shown here is clinic convention for compounded sermorelin, not an FDA-label protocol or a dose derived from the cited pediatric study.

Safety profile

Sermorelin has pediatric clinical-study history as GHRH(1-29), but adult wellness protocols have a thinner evidence base.

  • Common side effects: injection-site reactions, transient flushing or headache, vivid dreams.
  • Endogenous GH release pathway — has a built-in negative-feedback ceiling that limits supraphysiologic GH spikes.
  • Theoretical concern with chronic GH/IGF-1 elevation: facilitation of cancer growth in patients with malignancy.
  • Long-term adult use at wellness doses is not formally validated for safety.
Do not use if
  • Active or recent malignancy
  • Untreated hypothyroidism (treat first)
  • Pregnancy or breastfeeding

Sermorelin Dosing FAQ

The cited pediatric study does not answer this adult comparison. Sermorelin is shorter-acting than long-acting CJC-1295 with DAC, while no-DAC CJC-1295/Mod GRF appears in many clinic CJC/Ipa protocols. Those adult protocol choices are practitioner convention, not head-to-head clinical evidence.

There is no FDA-labeled adult wellness duration. This chart's 3–6 month cycle is clinic convention, and long-term safety at adult wellness doses is not formally validated.

The cited pediatric study dosed GHRH(1-29) at bedtime, and adult clinic protocols often carry that timing forward to align with overnight GH physiology. That does not make the adult pre-bed protocol a validated anti-aging or sleep regimen.

Sources

Related Dosage Charts

Where to get Sermorelin with a prescription

Sermorelin requires a prescription and medical supervision. Each service below states that a licensed provider reviews your intake and prescribes through a US compounding pharmacy where appropriate. Those are the companies’ own descriptions of how they operate, not findings of ours. Compounded medications are not FDA-approved, and a consultation does not guarantee a prescription.

Some telehealth links below are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. Commission never affects which products or clinics we list, how they are ordered, or what we say about them — see our editorial policy.

HealthRx — telehealth consultationAd

Says a board-certified physician reviews each intake and prescribes through a licensed 503A compounding pharmacy where appropriate, and lists a LegitScript certification. Compounded medications are not FDA-approved.

We are not a clinic and do not prescribe. Listing a service here is not a clinical endorsement of it, and you should confirm licensure and pharmacy sourcing yourself before treatment.

Want the full Sermorelin guide?

Mechanism, clinical evidence, side effects, costs, and provider listings for Sermorelin therapy.

Medical Disclaimer: This content is for informational purposes only and should not be considered medical advice. Always consult with a qualified healthcare provider before beginning any peptide therapy treatment.