OnePeptideShip

Ipamorelin Reconstitution Calculator

Research Use

Calculate precise U-100 syringe units, concentration (mg/mL), and doses per vial for Ipamorelin research.

Clinical Precision Tool

Ipamorelin Dosage Calculator

U-100 Calibrated
Calculated Syringe Draw
20.0Units
➜ 0.200 mL volume
0 Units100 Units Max
Concentration
1.00 mg/mL
Tick Marks
20.0 ticks
OE
Written by OnePeptideShip Editorial Team
Reviewed by Dr. Aris Thorne, MD, Board Certified Endocrinology Advisor
Updated September 2026

Clinical Pharmacology & Mechanism of Action

Ipamorelin is widely considered the safest, mildest, and most targeted Growth Hormone Releasing Peptide (GHRP) available in clinical research. It is a synthetic pentapeptide that acts as a selective agonist of the ghrelin/growth hormone secretagogue receptor (GHSR) .

Unlike older GHRPs (like GHRP-2 or GHRP-6), Ipamorelin is unique because of what it doesn't do. Older GHRPs often cause severe hunger (by mimicking ghrelin too closely) and stimulate the release of cortisol (the stress hormone) and prolactin (which can cause gynecomastia).

Ipamorelin is highly selective: it stimulates a massive pulse of Growth Hormone from the pituitary gland without significantly elevating cortisol, prolactin, or intense hunger pathways.

Pharmacokinetics & Systemic Half-Life

Ipamorelin is a short-acting peptide designed to mimic the body's natural pulsatile rhythm of GH release.

  • Half-life: Approximately 2 hours.
  • Duration of Action: The GH pulse peaks roughly 40-60 minutes post-injection and returns to baseline within 3-4 hours.

Because of this short half-life, Ipamorelin is dosed multiple times a day to simulate the natural, youthful pattern of GH spikes, which is critical for lipolysis (fat burning) and cellular repair without shutting down natural pituitary function.

Standard Research Dosing Protocols

Ipamorelin is almost exclusively stacked with a GHRH (like CJC-1295 No DAC) to achieve a synergistic, exponential GH pulse.

  • Dosage: 100mcg to 300mcg per injection.
  • Saturation Point: Ipamorelin has a strict biological saturation point. Injecting more than 300mcg at one time yields diminishing returns. A 500mcg dose will barely produce more GH than a 300mcg dose.
  • Frequency: 1 to 3 times daily. (Before bed is the most critical dose, as it aligns with the body's largest natural GH pulse).

Reconstitution Math & Syringe Guide

Ipamorelin is usually sold in 2mg or 5mg vials. Because the dose is in micrograms, calculation errors are common.

Step-by-Step Reconstitution (2mg Vial)

  1. Swab the rubber stoppers of your 2mg Ipamorelin vial and your Bacteriostatic Water.
  2. Using a sterile mixing syringe, draw exactly 2mL of Bacteriostatic Water.
  3. Inject the water slowly down the inside wall of the Ipamorelin vial.
  4. Swirl gently to dissolve the lyophilized powder.

The Math for a Standard Dose (200mcg):

  • 2mg total in the vial = 2,000mcg.
  • You added 2mL of water.
  • Therefore, the concentration is 1,000mcg per 1mL.
  • You need a 200mcg dose. Divide the dose by the concentration: 200 ÷ 1,000 = 0.2mL.
  • 0.2mL = 20 units on a U-100 syringe.

Common Mistakes & Troubleshooting

  • Injecting with Insulin Present: Like all GH secretagogues, insulin blunts the mechanism of action. If you eat a meal with carbohydrates or fats and then inject Ipamorelin, the GH pulse will be severely blunted. You must inject on a fasted stomach (2-3 hours after eating) and wait at least 30 minutes before eating again.
  • Over-dosing: Because 10 units looks so small in a syringe, researchers often draw 50 units (500mcg) thinking more is better. Due to the saturation point, this simply wastes expensive peptide.

Medical & Research Disclaimer

The information provided on this page, including all calculations, is for educational and laboratory research purposes only. It does not constitute medical advice. Peptides mentioned here are not approved for human consumption outside of FDA-approved clinical trials unless specified otherwise. Always consult a licensed healthcare provider before undertaking any new therapy.

Frequently Asked Questions

Using a standard 2mg vial with 2mL BAC water (1,000mcg/mL): 200mcg = 0.2mL = 20 units on a U-100 syringe.

Older GHRPs bind to multiple receptor types, causing elevation of cortisol (the stress hormone that promotes fat storage and muscle catabolism) and prolactin (which can cause gynecomastia and water retention in men). Ipamorelin is highly selective - it binds primarily to the GHSR and triggers a strong GH pulse with minimal or no effect on cortisol and prolactin. This makes it safe for long-term use.

Studies show that approximately 200-300mcg represents the saturation point for Ipamorelin's GH-releasing effect. At 300mcg, the pituitary's GHSR receptors are essentially maximally occupied. Injecting 500mcg or 1000mcg produces a negligibly stronger GH pulse compared to 300mcg - you are simply wasting expensive peptide.

Yes. Ipamorelin is used in research involving both male and female subjects. Its clean selectivity profile (no prolactin elevation, minimal cortisol) makes it safer for women than GHRP-2 or GHRP-6. Research doses for women are typically the same as for men (200-300mcg per injection).

Inject approximately 30-60 minutes before going to sleep. This is because the GH pulse triggered by Ipamorelin peaks around 40-60 minutes post-injection. Timing it this way perfectly aligns the peak GH pulse with the onset of slow-wave sleep, during which the body's own GH production is at its natural highest point, creating a compounding effect.

Minimally. While it binds to the ghrelin receptor (ghrelin is the "hunger hormone"), Ipamorelin is engineered to preferentially activate the GH-releasing pathway over the hunger pathway. Some subjects report a slight increase in appetite 30-45 minutes post-injection, but it is dramatically less intense than the ravenous, uncontrollable hunger induced by GHRP-6.

Yes - almost universally. Ipamorelin handles the "release" side (suppressing somatostatin and directly signaling the pituitary to dump stored GH), while CJC-1295 handles the "production" side (signaling the pituitary to synthesize and store more GH). Together, the GH pulse is exponentially (not just additively) stronger than either compound alone. They can be pulled into the same syringe for a single injection.

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