Growth Hormone Secretagogues

Ipamorelin (Research Grade)

Ipamorelin is a pentapeptide growth hormone secretagogue receptor (GHS-R) agonist. It is described as the most selective GHRP because published receptor work shows minimal cortisol, prolactin and ACTH cross-activation.

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Ipamorelin specifications

Reference data researchers look up before ordering ipamorelin. Every lot ships with documentation matching the batch number printed on the vial.

  • Class: selective GHS-R (ghrelin receptor) agonist
  • Length: 5 amino acids
  • Half life: approximately 2 hours
  • Storage: -20°C lyophilized

Ipamorelin purity testing and certificate of analysis

Each ipamorelin lot is released only after an independent purity panel. HPLC quantifies purity, LC-MS confirms molecular identity, and the lot-matched certificate is published so the number on your vial matches the report you download.

  • ≥99% HPLC purity specification
  • LC-MS mass confirmation on every batch
  • Endotoxin and sterility panel documentation
  • Lot-matched ipamorelin COA published on the certifications page

Ipamorelin reconstitution and BAC water ratios

Ipamorelin ships lyophilized. Reconstitute with bacteriostatic water containing 0.9% benzyl alcohol. The ratios below assume a standard U-100 insulin syringe.

  • 5mg vial + 2mL BAC water = 2.5mg per mL (10 units = 250mcg)
  • 10mg vial + 2mL BAC water = 5mg per mL (10 units = 500mcg)
  • Frequently co-reconstituted with a GHRH analog
  • Refrigerate after reconstitution

Where to buy ipamorelin

PX1 Research synthesizes and fills ipamorelin in a US cGMP-compliant facility rather than reselling imported material, so purity documentation traces back to the production lot. Multi-vial pricing steps down at 3, 5 and 10 vials, and subscription intervals are available on the product page.

Reconstitution calculator

Convert vial strength and bacteriostatic water volume into exact insulin-syringe unit marks.

Peptide reconstitution calculator

Vial strength (mg)
Bacteriostatic water (mL)
Target dose

Concentration

5 mg/mL

Draw volume

0.05 mL

Insulin syringe

5 units (IU)

U-100 insulin syringe (100 units = 1 mL)

5 IU
020406080100

10 mg + 2 mL = 5 mg/mL. A 250 mcg dose = 5 units on a U-100 syringe (40 doses per vial).

For laboratory and research use only. Not for human or veterinary use.

Need solvent? Buy bacteriostatic water (10mL / 30mL)

Frequently asked questions

Ipamorelin vs sermorelin — which receptor?

Ipamorelin binds the ghrelin/GHS receptor; sermorelin binds the GHRH receptor. They are complementary, not interchangeable.

Why is ipamorelin called the cleanest GHRP?

Receptor studies show far less prolactin and cortisol cross-activation than GHRP-2 or GHRP-6.

Is a certificate of analysis provided with ipamorelin?

Yes. Every ipamorelin lot has a published, lot-matched COA showing HPLC purity and LC-MS identity confirmation.

How should ipamorelin be stored?

Store the lyophilized vial at -20°C protected from light. Once reconstituted with bacteriostatic water, keep it refrigerated at 2–8°C.

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