COA Verified

BUILD · Compound 03

Tesamorelin

Name: Tesamorelin
Brand: ONE%
SKU: PEP-TESA-10
Price: 61 EUR
Availability: InStock

GHRH analogue, growth-hormone-releasing factor

Tesamorelin is a stabilised analogue of growth-hormone-releasing hormone, studied for its role in modulating the endogenous growth-hormone axis.

Limited supply

€61 Vial · 10mg · per unit, excl. shipping

Every order includes ultra-fine injectable needles and alcohol swabs, the smallest gauge, highest-grade, ready to use.

UPS Standard · €193-5 days, all EU

UPS Express · €2924-48 hours across the EU

Tracked, cold-chain and discreetly packaged. Choose your speed at checkout.

CategoryBUILD · Strength

FormatVial

In The BoxNeedles + alcohol swabs

Dose10mg

DeliveryUPS Standard 3-5 days · UPS Express 24-48h

Purity Target>99%

Also: request a COA or a wholesale quote.

Third-party testedCOA per batchCold-chain EU shippingDiscreet packaging

Add the instrument ONE% Pen Reusable machined aluminium. Buy once, it works with any compound.

€49

Complete the kit ONE% Cartridges · 5-pack Sterile replacement cartridges for the ONE% Pen.

€39

Research Overview

Tesamorelin is a stabilised analogue of growth-hormone-releasing hormone (GHRH), the upstream signal the body uses to prompt its own growth-hormone output. Rather than introducing hormone directly, it acts at the top of the axis, making it a favoured tool for studying the pulsatile, self-regulating nature of GH release.

The stabilisation is the clever part: native GHRH is fragile and short-lived, while Tesamorelin’s modified structure resists rapid breakdown, giving researchers a cleaner, more reproducible probe of pituitary signalling and its downstream metabolic effects, particularly around lipid handling and visceral-fat models.

Because it works through the endogenous axis, small differences in material quality surface as noisy secretory responses. ONE% supplies Tesamorelin lyophilised, batch-verified, so the GH-axis signal being measured stays clean from study to study.

Mechanism In Brief

Tesamorelin is a GHRH analogue that stimulates the pituitary to release endogenous growth hormone, preserving the body’s own pulsatile secretion pattern.

Areas Of Research Interest

GH-axis signalling, upstream stimulation of endogenous GH
Lipid metabolism, circulating and visceral lipid effects
Pituitary dynamics, pulsatility and feedback regulation
Body composition, visceral-fat and lean-mass models
Secretagogue comparison, against other GH-axis peptides

Handling & Reconstitution

Every ONE% compound ships as a lyophilised powder for stability in transit. Reconstitute with bacteriostatic water to the concentration your protocol requires, store at 2–8°C protected from light, and use within your laboratory’s validated window. Each vial is batch-referenced to its Janoshik Certificate of Analysis, available on request.

Compound FamilyGrowth-hormone secretagogue

FormLyophilised powder

PresentationSingle sealed vial

ReconstitutionBacteriostatic water

Storage2–8°C, protect from light

Important

For research and laboratory use only. Tesamorelin is supplied strictly as premium-grade research material with a batch Certificate of Analysis. It is not a drug, supplement, food, or cosmetic, and is not intended for human or veterinary use, diagnosis, treatment, or the prevention of any condition. All statements describe published research directions only.

Good To Know

Common Questions.

It ships as a lyophilised (freeze-dried) powder. In the lab it's reconstituted with bacteriostatic water to the concentration your protocol requires. Kept sealed, cold and dark, it stays stable until you need it.

Sealed at 2–8°C, protected from light. As a lyophilised powder it's stable in transit; once reconstituted, follow your laboratory's validated window.

No, every compound ships as a lyophilised vial and is reconstituted in the lab. The ONE% Pen is a separate reusable instrument for laboratories that want repeatable, graduated delivery instead of drawing by syringe each time. Buy it once; it is not tied to any one compound.

Every vial carries a batch code. Enter it on our batch verification page to pull up that batch’s Certificate of Analysis, or ask us for the certificate before you order, we would rather you check than take our word for it.

It is the target every batch of Tesamorelin is held to, measured by HPLC at Janoshik and reported on the COA as a percentage of the total peptide content. Identity is confirmed separately by mass spectrometry. A purity figure without a named method and a batch reference behind it is marketing, not data.