Sermorelin
A growth hormone-releasing hormone analog that stimulates natural GH production at the pituitary level.
Medically reviewed by Dr. Jonathan Snipes, MD. Last reviewed May 6, 2026.
What It Is
Sermorelin is a truncated form of GHRH (growth hormone-releasing hormone). It's one of the most studied and widely prescribed GH peptides.
How It Works
It binds to GHRH receptors on the pituitary gland, stimulating your body to produce and release more of its own growth hormone in a natural pulsatile pattern.
Who It's For
Adults over 30 experiencing age-related GH decline. Those looking for gentle, natural GH support without the intensity of synthetic HGH.
Who Should Avoid It
Not for those with active cancer, pituitary tumors. Use with caution in diabetic retinopathy.
Protocol & Pricing
OBP Pharmacy Price
$80/15mg
You pay pharmacy price. No markup.
Starting Dose
20 units (0.6mg)
Form
Injectable vial (5mL, 3mg/mL, 15mg total)
Dosing Protocol
20 units subcutaneous injection daily, Monday to Friday. Take in evening to amplify natural nocturnal GH surge. 20 units = 0.2mL × 3mg/mL = 0.6mg per injection.
Beyond Use Date
90 Days from compounding (USP <797>)
Optimal Balance Pharmacy assigns this date and prints it on your vial label. Always follow the label. Once a multi-dose vial is punctured, the in-use date on the label is shorter than the compounding date shown here.
Stacking Guide
Stacks Well With
GHRH analog (GRF 1-29)
Read the Sermorelin protocol guide
The only GHRH analog still Category 1 compoundable. Daily injection, 6 to 12 month protocol, 30 to 40 percent non-responder rate, and IGF-1 the biomarker that decides the answer.
Related Peptides
Independently tested
Sermorelin lab test reports
Every Sermorelin batch dispensed by Optimal Balance Pharmacy is independently tested by Eagle Analytical Services (FDA-registered, A2LA ISO 17025 accredited) for sterility (ScanRDI or Celsis) and bacterial endotoxin (USP <85>). The most recent report:
| Submission | Lot | Sample | Sterility | Endotoxin | |
|---|---|---|---|---|---|
| ETX-260824-0479 | LG342010198 | SERMORELIN 3MG/ML 5ML | Pass | Pass <2 EU/mL / 1750 EU/mL | Download |
Eagle Analytical Services is an independent FDA-registered laboratory, A2LA accredited to ISO 17025, based in Houston, Texas. They have no commercial relationship with RxPepsDirect. RxPepsDirect prescribes; Optimal Balance Pharmacy compounds and dispenses; Eagle tests every batch. Three separate companies. Browse our full quality program on the quality page.
How to get Sermorelin prescribed online
Sermorelin is available by prescription through a licensed telehealth visit and dispensed for human use by a named 503A pharmacy. That is what separates it from research-use-only vials sold without a prescription. There is no subscription and no membership, just a one-time visit fee.
- 1
Complete a $39 medical visit. Answer a short intake about your health history and your goals for Sermorelin. The $39 fee is the only charge RxPepsDirect collects, paid once, not a recurring subscription.
- 2
A licensed provider reviews it. A US-licensed nurse practitioner or physician reviews your intake and, if Sermorelin is appropriate for you, writes a patient-specific prescription. The starting dose is typically 20 units (0.6mg).
- 3
The pharmacy compounds and ships it. Optimal Balance Pharmacy, a 503A pharmacy in Texas, compounds Sermorelin and ships it pre-reconstituted by FedEx overnight in a reusable cooled case. Your fill is Injectable vial (5mL, 3mg/mL, 15mg total), and you pay the pharmacy $80/15mg at wholesale, with no clinic markup, plus a $15 flat FedEx overnight shipping fee charged by the pharmacy.
RxPepsDirect prescribes Sermorelin in the 29 jurisdictions its medical team is licensed in. Start a $39 visit or browse the full Muscle Growth & Body Composition range. Comparing services first? See how RxPepsDirect stacks up against seven other providers in our best telehealth for compounded peptides comparison.
Common questions about Sermorelin
- What is sermorelin and what does it do?
- Sermorelin is a 29-amino acid peptide that mimics the active fragment of natural growth hormone-releasing hormone (GHRH). It binds to GHRH receptors on the pituitary gland and stimulates the body's own pulsatile growth hormone release. The molecule was originally FDA-approved as Geref for pediatric GH deficiency. It is used in adult age-management practices to support GH levels that decline naturally with age. The sermorelin starter Optimal Balance Pharmacy compounds for RxPepsDirect prescriptions is the 15 mg vial at $80 with a $39 medical visit fee.
- Is sermorelin safe?
- Sermorelin has a long clinical safety record dating to the original Geref FDA approval in the 1990s. It works by stimulating endogenous GH release rather than supplying synthetic GH, so it preserves the body's negative feedback loop and avoids the supraphysiologic GH levels seen with HGH injections. The most commonly reported side effects are mild injection-site reactions, occasional flushing, and rare transient drowsiness. Sermorelin is contraindicated in patients with active malignancy, pituitary tumors, or active diabetic retinopathy.
- Does sermorelin work for adults with low growth hormone?
- Yes. Sermorelin reliably increases endogenous GH and IGF-1 levels in adults when dosed appropriately at bedtime. Clinical use over the last 3 decades supports improvements in body composition (reduced visceral fat, modest lean mass increase), sleep quality, and skin elasticity over a 3 to 6 month protocol. Effects are gentler than synthetic HGH because the body's pulsatile release pattern is preserved. Lab work (IGF-1 baseline and follow-up) is the most reliable way to measure response.
- How much sermorelin should I take per day?
- The RxPepsDirect starting dose is 20 units (0.6 mg) on a U-100 insulin syringe drawn from a 15 mg / 5 mL vial (3 mg/mL), taken subcutaneously once daily before bed. Some providers titrate to 1 mg per night based on IGF-1 response. Take it on an empty stomach (no food for 2 hours before) to avoid blunting the GH pulse with insulin or carbohydrate intake. Your provider will adjust the dose based on your IGF-1 follow-up labs.
- Is sermorelin FDA approved?
- Sermorelin was FDA-approved as Geref in 1997 for diagnostic and pediatric use. The branded product was discontinued for commercial reasons, but sermorelin remains an FDA-listed active ingredient eligible for compounding by a 503A pharmacy under a patient-specific prescription. RxPepsDirect prescribes sermorelin and Optimal Balance Pharmacy compounds it under Section 503A; the Certificate of Analysis for every batch is published on this product page.
- Does sermorelin need to be refrigerated?
- Yes. Sermorelin ships pre-reconstituted from Optimal Balance Pharmacy and must be refrigerated at 36 to 46 degrees Fahrenheit (2 to 8 degrees Celsius). Optimal Balance ships in cold-chain packaging to preserve potency in transit. Each vial carries a Beyond Use Date (BUD) that Optimal Balance Pharmacy assigns and prints on the label. Once you puncture the vial, the in-use date on your label applies and is shorter than that compounding date. Do not freeze; freezing degrades the peptide and reduces potency. Discard any vial past the applicable date on the label.
- How do I get sermorelin prescribed?
- Complete the RxPepsDirect intake at rxpepsdirect.com. The intake captures medical history, current medications, recent labs (IGF-1 if available), and your goals. A licensed nurse practitioner or physician assistant in your state reviews your intake; if sermorelin is appropriate they write the prescription. Optimal Balance Pharmacy fills it and ships via FedEx overnight, pre-reconstituted and ready to inject. The flat fee is $39 per order regardless of how many peptides are included.