A clear Sermorelin research vial on a coloured plaster ledge, with botanicals beside it

About this compound

Sermorelin is the unmodified 1-29 fragment of human growth-hormone-releasing hormone, amidated at the C-terminus. It is the shortest fragment of GHRH that retains full receptor activity, which is why it became the reference sequence for the class.

Studied in

GH/IGF-1 axis
Pituitary secretion
Endocrine signalling

Compound identity

Compound	Sermorelin
CAS number	86168-78-7
Molecular formula	C149H246N44O42S
Molecular weight	3,357.9 Da

Specifications

Purity method: HPLC
Appearance: Lyophilized powder
Solubility: Reconstitute per protocol; see Supplies for diluents.
We don't publish a purity percentage here — that figure is only meaningful tied to the lot you actually receive, so it lives on the lot certificate.

Endocrine

HERALD

Sermorelin

GHRH(1-29) analog, studied in growth-hormone axis research.

What the research targets

Studied as a growth-hormone-releasing-hormone analog in pituitary secretion and GH/IGF-1 axis models.

Supply formats

Single units ship from stock. Cases are back-ordered against the same single-unit price.

Stick is newly released — available alongside the vial on every compound.

Single unit

Sample quantity — one unit.

5 mgVial
PS-9002345-5-MG
On verified account
Skinni Stick™ 5 mgSkinni Stick™New
Single-compound Skinni Stick™. Supplied to verified accounts only.
PS-9002345-PEN-5-MG
On verified account

Case — back-order

Ten of one size, at 10× volume pricing.

Case · 10 × 5 mg
Back-order — 15% off the single-unit price.
PS-9002345-C10-5-MG
On verified account
Case · 10 × Skinni Stick™ 5 mgNew
Back-order — 15% off the single-unit price.
PS-9002345-C10-PEN-5-MG
On verified account

One-time verification of professional or institutional affiliation. No payment is taken on this site.

Research use only

This compound is supplied exclusively for laboratory research by qualified professionals and institutions. It is not a drug, dietary supplement, or cosmetic, and is not for human or veterinary use. We publish no dosing, administration, or human-use guidance of any kind, and nothing here should be read as a claim about an effect in people.

From the research library

Cited summaries of the published work behind Sermorelin — what was studied, in which model, and what was measured.

All articles

Endocrine

The growth-hormone axis, and four ways to poke it

GHRH analogues and ghrelin-receptor secretagogues act on different receptors with different consequences for pulsatility. The distinction is the whole subject.

August 19, 202610 min read

Cellular

What a peptide actually is

Short chains of amino acids, the signalling vocabulary biology already speaks, and why they became one of the most active areas in drug discovery.

July 14, 20267 min read