Ipamorelin is a synthetic peptide that selectively encourages the body to release its own growth hormone. It is typically administered via subcutaneous injection once daily to support anabolic processes, fat metabolism, and tissue repair. Dosing generally ranges from 100-300 mcg daily, often starting lower and gradually increasing.
- Stimulates natural growth hormone release without affecting cortisol levels.
- Administered once daily, preferably before sleep, via subcutaneous injection.
- Dosing can be gradually increased from 100 mcg to 250 mcg over several weeks.
- Reconstitute a 10mg vial with 3.0 mL of bacteriostatic water for easy dosing.
Reconstitution
Vial strength
10 mg
Bacteriostatic water
3 mL
Concentration
3.33 mg/mL
1 unit = 0.01 mL = 33 mcg
- 1Draw 3.0 mL of bacteriostatic water using a sterile syringe.
- 2Carefully inject the water down the inside wall of the Ipamorelin vial, avoiding direct contact with the peptide powder.
- 3Gently swirl or roll the vial until the powder completely dissolves; do not shake vigorously to prevent degradation.
- 4Label the reconstituted vial with the date and store it in the refrigerator (2-8 °C). The product should be protected from light.
Dosing schedule
| Phase | Dose | On a U-100 syringe |
|---|---|---|
| Weeks 1-2 | 100 mcg | 3 units (0.03 mL) |
| Weeks 3-4 | 150 mcg | 5 units (0.05 mL) |
| Weeks 5-8 | 200 mcg | 6 units (0.06 mL) |
| Weeks 9-12 | 250 mcg | 8 units (0.08 mL) |
Protocol detail
| Start | Begin with 100 mcg daily and gradually increase the dose by about 50 mcg every 1 to 2 weeks, based on individual tolerance. |
|---|---|
| Target | Aim for a dose of 200–250 mcg daily between Weeks 5 and 12. |
| Frequency | Inject once per day subcutaneously, ideally 30–60 minutes before going to bed. |
| Cycle Length | A typical cycle lasts 8–12 weeks, with an option to extend to 16 weeks, followed by a 2–4 week off-cycle period. |
| Timing | Evening dosing before bedtime is preferred. Remember to rotate injection sites regularly. |
Overview at a glance
| Goal | To activate the body’s own growth hormone production, supporting muscle development, fat metabolism, and cellular repair processes. |
|---|---|
| Schedule | Daily subcutaneous injections for 8–12 weeks, with an optional extension to 16 weeks, followed by a 2–4 week break. |
| Dose Range | 100–300 mcg daily, with a recommended gradual increase; 200 mcg is a common maintenance dose. |
| Reconstitution | Mix a 10 mg vial with 3.0 mL of bacteriostatic water to achieve approximately 3.33 mg/mL concentration, allowing for accurate unit measurements. |
| Storage | Lyophilized peptide should be kept refrigerated or frozen. Once reconstituted, store it in the refrigerator and use within roughly four weeks. |
How it works
Ipamorelin functions by binding to the growth hormone secretagogue receptor (GHSR-1a), prompting the pituitary gland to release the body's natural growth hormone in pulses. Unlike older growth hormone-releasing peptides, Ipamorelin is highly selective, meaning it avoids stimulating the release of hormones like ACTH, cortisol, or prolactin at effective doses. After a subcutaneous injection, growth hormone levels typically peak within about 40 minutes and return to baseline after 2-3 hours. This brief, pulsatile action supports a once-daily administration to align with the body’s physiological growth hormone patterns. Research indicates that even consistent daily use may not desensitize the growth hormone release mechanism, though cycling is often recommended. Ipamorelin also shows promise in enhancing gastrointestinal motility.
Reported effects
- Boosts lean muscle mass and speeds up recovery through growth hormone-mediated anabolic processes.
- Improves fat metabolism, contributing to positive body composition changes.
- Highly specific for growth hormone release, with minimal effect on other hormones.
- May enhance gut motility and digestive function.
- Generally well-tolerated with few side effects at typical dosages.
Reported side effects
- Occasional mild reactions at the injection site (redness, swelling).
- Very rare reports of water retention.
- Very rare reports of increased hunger.
Storage
Lyophilised (unmixed)
2-8 °C (35.6-46.4 °F) or freeze at -20 °C (-4 °F) in dry, dark conditions
After reconstitution
2-8 °C (35.6-46.4 °F); use within ~4 weeks
Supplies
| Peptide vials | 2-3 vials (10 mg each) for a 12-week protocol |
|---|---|
| Insulin Syringes (U-100) | 84 for a 12-week protocol (1 per day) |
| Bacteriostatic Water (10 mL bottles) | 1 bottle (for reconstituting 2-3 vials) |
| Alcohol Swabs | 200 swabs (2 x 100-count boxes) for a 12-week protocol |
Important notes
- Always use a new, sterile insulin syringe for each injection and dispose of it properly in a sharps container.
- Rotate injection sites on areas like the abdomen, thighs, or upper arms to prevent skin irritation.
- Inject slowly and pause for a few seconds before withdrawing the needle.
- Keep a record of your daily dose and injection site rotation for consistency.
- Due to its short half-life (1.5–2.5 hours), consistent daily timing maximizes the peptide's effects.
Frequently asked questions
How does Ipamorelin differ from other growth hormone-releasing peptides?
Ipamorelin stands out due to its high selectivity for stimulating growth hormone release without significantly affecting other hormones like ACTH, cortisol, or prolactin. This often makes it a preferred choice for individuals seeking GH benefits with minimal side effects.
What is the best time of day to inject Ipamorelin?
It's generally recommended to inject Ipamorelin 30-60 minutes before bedtime on an empty stomach. This timing synergizes with the body's natural nocturnal growth hormone secretion, maximizing its effects.
Do I need to cycle Ipamorelin?
Though animal studies suggest Ipamorelin may not cause desensitization, an 8-12 week cycle followed by a 2-4 week break is commonly recommended. This practice is a precautionary measure to help maintain receptor sensitivity and optimize long-term benefits.
How should I store Ipamorelin once it's reconstituted?
After reconstitution with bacteriostatic water, Ipamorelin should be stored in the refrigerator at 2-8 °C (35.6-46.4 °F) and used within approximately four weeks. Always protect it from light.
Educational reference only. These figures summarise how Ipamorelin is commonly described in research literature and supplier documentation, including the Ipamorelin listing at peptidesuk4u.co.uk. They are not a prescription, not medical advice, and not a recommendation to self-administer anything.
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