Sermorelin is GHRH(1-29) amide: the first 29 amino acids of growth hormone-releasing hormone, the shortest fragment that keeps its full activity.

What is sermorelin studied for?

Sermorelin is studied in growth hormone research. It acts on the GHRH receptor in the pituitary to stimulate natural, pulsatile growth hormone release.

What is the difference between sermorelin and tesamorelin?

Both are GHRH analogues. Sermorelin is the 29-amino-acid fragment. Tesamorelin is the full 44-amino-acid GHRH with a trans-3-hexenoyl group added to protect it from breakdown.

How is sermorelin tested?

Every batch goes to an independent lab. The current batch was tested across three vials for purity (RP-HPLC), identity (LC-MS), net peptide content, endotoxins, heavy metals and sterility. Each batch's certificate of analysis is published on the lab results page.

How should sermorelin be stored?

Keep the sealed vial in the refrigerator at 36–46°F (2–8°C), dry and away from light. As a freeze-dried powder it tolerates room temperature for weeks, which is why it ships without ice. Once reconstituted, keep it refrigerated between uses. More in our guide, Do peptides need to be refrigerated?

How much sermorelin is in a vial?

Sermorelin comes as a white lyophilized powder in a 10mg vial.

Is sermorelin for human use?

No. Sermorelin is sold for laboratory research use only.

10mg · 99%+ Purity

SERMORELIN

Sermorelin is a synthetic 29-amino-acid analogue of growth-hormone-releasing hormone, commonly described as GHRH(1-29) amide.

$78.00

COA Tested 99%+ Purity Research Grade

Tue, Oct 6 – Wed, Oct 7

Free Delivery Guarantee

2-day shipping

We accept

99.644% purity View COA

Certificate of Analysis

Sermorelin 10mg · 3 vials tested by an independent lab · RP-HPLC / LC-MS

Batch 2026-SN672

Latest

99.644%

Average purity

Labeled content: 10mg
Net content: 10.64mg (+6%)
Vials tested: 3
Endotoxins: Pass
Heavy metals: Pass
Microbial sterility: Pass
Method: RP-HPLC / LC-MS
Tested: Jul 16, 2026

View full COA

Batch SN590

99.83%

Average purity

Labeled content: 10mg
Net content: 10.61mg (+6%)
Vials tested: 1
Endotoxins: Pass
Method: HPLC
Tested: May 19, 2026

View full COA

Compound Information

Chemical and structural properties

What it is

What is Sermorelin?

Sermorelin is a synthetic 29-amino-acid analogue of growth-hormone-releasing hormone, commonly described as GHRH(1-29) amide.

Class: GHRH analogue (GHRH 1-29)
Also known as: GRF (1-29) NH2
Form: White lyophilized powder
Use: Research use only

Molecular profile

Compound Structure

CAS number: 86168-78-7
Molecular formula: C149H246N44O42S
Molecular weight: 3357.9 g/mol
Amino acids: 29
Sequence: Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Val-Leu-Gly-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Ser-Arg-NH2

PubChem · CID 16132413

Storage

Storage & Stability

Store cold
Protect from light
Keep dry

Lyophilized (powder) 2–8°C (36–46°F) Refrigerate · −20°C for long-term storage

Reconstituted 2–8°C (36–46°F) Refrigerate · use within 28 days

Solubility: Soluble in bacteriostatic water

Sermorelin Overview

The shortest fully active piece of growth hormone-releasing hormone.

Technical overview

Sermorelin is the first 29 of GHRH's 44 amino acids, with an amidated C-terminus. That fragment keeps the full activity of the natural hormone at the GHRH receptor in the pituitary.

Research applications

Researchers use sermorelin to study natural, pulsatile growth hormone release, pituitary function, and how GHRH signalling combines with ghrelin-receptor agonists such as ipamorelin.

FAQs

What is sermorelin?

Sermorelin is GHRH(1-29) amide: the first 29 amino acids of growth hormone-releasing hormone, the shortest fragment that keeps its full activity.
What is sermorelin studied for?

Sermorelin is studied in growth hormone research. It acts on the GHRH receptor in the pituitary to stimulate natural, pulsatile growth hormone release.
What is the difference between sermorelin and tesamorelin?

Both are GHRH analogues. Sermorelin is the 29-amino-acid fragment. Tesamorelin is the full 44-amino-acid GHRH with a trans-3-hexenoyl group added to protect it from breakdown.
How is sermorelin tested?

Every batch goes to an independent lab. The current batch was tested across three vials for purity (RP-HPLC), identity (LC-MS), net peptide content, endotoxins, heavy metals and sterility. Each batch's certificate of analysis is published on the lab results page.
How should sermorelin be stored?

Keep the sealed vial in the refrigerator at 36–46°F (2–8°C), dry and away from light. As a freeze-dried powder it tolerates room temperature for weeks, which is why it ships without ice. Once reconstituted, keep it refrigerated between uses. More in our guide, Do peptides need to be refrigerated?
How much sermorelin is in a vial?

Sermorelin comes as a white lyophilized powder in a 10mg vial.
Is sermorelin for human use?

No. Sermorelin is sold for laboratory research use only.