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Bioalmanac

Hexarelin

Examorelin · EP-23905

Early human trials

Status reviewed 16 Aug 2026

Prohibited in sport

The most potent growth hormone releasing peptide of the three, and the only one that reliably stops working. Its response fades within about two weeks of continuous use.

Storage

Freeze-dried powder
Refrigerated at 2–8 °C, protected from light.
After mixing
Refrigerated at 2–8 °C. Do not freeze once mixed.
Long-term, frozen
Unopened powder is stable at −20 °C or colder.

Reconstitution — 2 mg vial, 100 mcg dose

On a 1 mL U-100 syringe. Check every figure against your own vial before drawing.

Water addedConcentrationVolume to drawUnitsDoses per vial
1 mL2 mg/mL0.05 mL5 units20
2 mL1 mg/mL0.1 mL10 units20
3 mL0.667 mg/mL0.15 mL15 units20
5 mL0.4 mg/mL0.25 mL25 units20

Dose ranges reported in sources

Descriptions of what sources report, not recommendations.

GoalRangeFrequencySource
Growth hormone response, as studied100–200 mcgOnce or twice daily in study conditionsClinical trial
Commonly described community protocol100–200 mcgOne to two times daily, in short blocks rather than ongoingCommunity practice

When to stop

  • Numbness, tingling or persistent pain in the hands or wrists.
  • Swelling that does not settle, particularly in the ankles or face.
  • Rising fasting glucose, or new thirst, frequent urination or blurred vision.
  • Nipple tenderness or discharge, or a change in menstrual cycle. Cortisol and prolactin rise more with this compound than with its relatives.
  • Any allergic response: rash, hives, facial swelling or difficulty breathing. Seek urgent care.
  • Any new lump, unexplained weight loss or unexplained persistent pain.

Not approved for human use in any jurisdiction. Reached early-phase clinical study in the 1990s; development did not continue, in part because the growth hormone response was not sustained. Sold only as a research chemical.

Arithmetic on values you enter. Not medical advice. Not reviewed by a clinician. · bioalmanac.com/peptides/hexarelin

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