Enter your hexarelin vial size and the volume of bacteriostatic water you are adding. The calculator returns the concentration in mcg/ml and the exact units to draw on a U-100 insulin syringe. It works for the common 5mg and 10mg vials.
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Results
Concentration
2500 mcg/ml
2.5 mg/ml
Volume to inject
0.04 ml
per dose
Units on insulin syringe (U-100)
4 units
on a standard 100-unit insulin syringe
Doses per vial
50 doses
at 100 mcg each
How this is calculated
5mg × 1,000 = 5000 mcg total
5000 ÷ 2ml = 2500 mcg/ml
100 mcg ÷ 2500 = 0.04 ml
0.04 ml × 100 = 4 units
Disclaimer: This calculator is provided for informational purposes only. Always verify results against your specific vial labelling before use. Peptidy does not provide medical advice — consult a qualified healthcare professional before beginning or modifying any protocol. Use of research peptides may be subject to legal restrictions in your jurisdiction.
Hexarelin is a potent growth-hormone secretagogue, typically dosed around 100mcg one to three times per day. Because the doses are small, accurate reconstitution is what lets you draw them reliably on an insulin syringe.
Ranges commonly reported in research use. Hexarelin's effect on GH release can diminish with continuous use, so it is often cycled.
| Common dose | 100 mcg per injection |
| Typical frequency | 1–3 times daily |
Worked example: 5mg vial + 2ml BAC water, 100mcg dose
2ml gives 2,500 mcg/ml, so a 100mcg dose is 0.04ml = 4 units. If 4 units feels too small to measure precisely, a 10mg vial in 2ml gives 5,000 mcg/ml and 100mcg becomes 2 units — or keep 2ml on a 5mg vial and draw carefully.
With a 5mg vial reconstituted in 2ml (2,500 mcg/ml): 100 ÷ 2,500 = 0.04ml = 4 units. Enter your vial size and water volume above for your exact figure.
Continuous hexarelin use can lead to a reduced GH response over time, so it is commonly run in cycles rather than indefinitely. This does not change the reconstitution calculation.
Refrigerate at 2–8°C away from light and label the vial with the date. Reconstituted hexarelin is commonly used within 4–6 weeks. Do not freeze it.
Store your vial concentration, log every dose against it, and never lose track of what you injected or when.