Tesamorelin in Colombia: what it is, GHRH mechanism and complete guide

The Tesamorelin is a synthetic analog of growth hormone releasing factor (GHRH) that has generated increasing interest in the research community for its ability to stimulate the natural release of growth hormone (GH) from the pituitary gland. Unlike direct administration of exogenous GH, GHRH analogues such as Tesamorelin act by promoting endogenous production.

In this complete guide you will find what is Tesamorelin, The contents of this section include: its mechanism of action, the presentations available in Colombia, criteria for choosing a reliable supplier, reconstitution procedure and answers to frequently asked questions. All content is provided exclusively for research purposes.

What is Tesamorelin?

The Tesamorelin (TH9507) is a synthetic analogue of the GHRH (Growth Hormone-Releasing Hormone), a natural hormone produced by the hypothalamus. The chemical modification with respect to natural GHRH gives it greater metabolic stability, allowing a longer biological effect.

It was approved by the FDA in 2010 under the trade name Egrifta for the treatment of HIV-associated lipodystrophy in patients on antiretroviral therapy. Due to its mechanism and pharmacological profile, it is still under investigation in other contexts related to the GH/IGF-1 axis.

Mechanism of action

Tesamorelin acts on the GHRH receptors in the anterior pituitary, stimulating the natural release of growth hormone (GH). In turn, GH acts on the liver promoting the production of IGF-1, a key factor in many metabolic, anabolic and tissue repair processes.

The most studied characteristics are:

• Pulsatile GH stimulationThe natural release pattern is maintained, as opposed to the direct administration of exogenous GH.
• Increased IGF-1downstream effect documented in published clinical studies.
• Modulation of lipid metabolismClinical research has documented visceral fat reduction in specific subjects.
• Resistance to degradationbetter stability with respect to endogenous GHRH.

Presentations available in Colombia

Presentation	Format	Typical research use
Tesamorelin 5 mg	Lyophilized vial	Standard research
Tesamorelin 10 mg	Lyophilized vial	Extended protocols

Where to buy Tesamorelin in Colombia?

For Tesamorelin the quality of the supplier is especially important because of the sensitivity of the peptide. Objective criteria for evaluation:

1. Purity certified by HPLC >98%
2. Certificates of Analysis (CoA) for each lot
3. Cold chain respected during transport
4. Discreet packaging without reference to content
5. Realistic delivery times24-72 working hours to major cities
6. Technical support to resolve doubts about reconstitution
7. Secure payment methods: cards, PSE, Nequi, Daviplata

Reconstitution of Tesamorelin with bacteriostatic water

Tesamorelin delivers lyophilized. To use it in any research protocol, it must be reconstituted with bacteriostatic water following an aseptic procedure:

1. Hand hygiene and the work surface. Wear gloves if possible.
2. Disinfect rubber stoppers Tesamorelin vial and bacteriostatic water with 70% alcohol swab.
3. Load the syringe with the desired volume of bacteriostatic water.
4. Insert the needle into the vial Tesamorelin at a 45-degree angle against the inner wall of the vial.
5. Inject slowly water. Do not shake; Turn smoothly.
6. Wait 2-3 minutes until the solution is completely clear.
7. Label the vial with the date and the resulting concentration.
8. Store refrigerated between 2-8°C. Use up to 45 days.

For customized calculations, use our peptide calculator.

Storage and conservation

• Before reconstitutionStorage: ideal storage at 2-8°C. At room temperature up to 30 days if the temperature does not exceed 25°C.
• After reconstitutionMandatory refrigeration between 2-8°C. Shelf life: up to 45 days.
• Light protectionStore in original box or wrapped in dark paper.
• Avoid freezing.

Tesamorelin vs. other GHRH analogs

Peptide	Class	Distinguishing features
Tesamorelin	Stabilized GHRH analog	FDA approved 2010, documented clinical profile
CJC-1295 without DAC	GHRH analog	Short half-life, pulsatile profile
CJC-1295 with DAC	GHRH Analog + Drug Affinity Complex	Longest half-life (days)
Sermorelin	GHRH fragment (1-29)	Original analog, less stable

The choice depends on the objective of the study. For investigations requiring a clinically validated pharmacokinetic profile, Tesamorelin is often the first choice.

Frequently Asked Questions

Is Tesamorelin approved in Colombia?

Not for general prescription use. In Colombia, Tesamorelin is distributed exclusively for scientific research purposes. Although it has FDA approval for a specific indication (HIV lipodystrophy), it is not approved by Invima as a prescription drug.

What is the difference between Tesamorelin and CJC-1295?

Both are GHRH analogs but Tesamorelin has FDA approval and a well-documented clinical profile. CJC-1295 is more studied in a research setting and exists in versions with and without DAC (which alters the half-life).

How long does shipping take in Colombia?

Between 24 and 72 business hours for major cities such as Bogota, Medellin, Cali, Barranquilla, Cartagena. Up to 5-7 business days for remote areas.

How long does it last when reconstituted?

Once reconstituted with bacteriostatic water and stored refrigerated at 2-8°C, it lasts up to 45 days.

In a nutshell

Tesamorelin is one of the most clinically documented GHRH analogues. For research on the GH/IGF-1 axis it remains one of the most relevant molecules due to its combination of metabolic stability and well-characterized pharmacokinetic profile.

Check the available options: Tesamorelin 5 mg y Tesamorelin 10 mg. Read also the related guides in our section Guides.