Purpose | Dosage Range | Frequency | Administration |
---|---|---|---|
General Use | 200-300 mcg | 1-3x daily | Subcutaneous injection |
Bodybuilding | 300-500 mcg | 1-2x daily | Subcutaneous injection |
Research | 3-10 mcg/kg | 1-2x daily | Subcutaneous injection |
Anti-Aging | 200-300 mcg | 1-2x daily | Subcutaneous injection |
Sleep Enhancement | 100-200 mcg | 1x daily (before bed) | Subcutaneous injection |
2. What is Ipamorelin?
Composed of 5 amino acids: Aib-His-D-2-Nal-D-Phe-Lys-NH2
Molecular weight: 711.868 Da
First selective growth hormone secretagogue
Stimulates the release of growth hormone without affecting other hormones
Discovered in the 1990s by Novo Nordisk researchers
Known for its high specificity and low side effect profile compared to other GHRPs
Binds to the ghrelin receptor (GHS-R1a) in the hypothalamus and pituitary gland
Stimulates the release of growth hormone-releasing hormone (GHRH)
Promotes the synthesis and release of growth hormone from the pituitary gland
Does not significantly affect cortisol, prolactin, or other hormone levels
Mimics the pulsatile release of natural growth hormone
Enhances the body's natural growth hormone axis without suppressing it
Potential to reduce body fat by up to 10% in some studies
May increase lean muscle mass by 5-10% over 12-16 weeks
Could improve overall body composition and muscle-to-fat ratio
May accelerate wound healing by up to 30% in animal studies
Potential to enhance recovery from exercise and injuries
Shown to increase collagen synthesis in connective tissues
Possible improvements in skin elasticity and thickness by up to 15%
Potential to reduce wrinkles and improve overall skin appearance
May increase bone mineral density by 2-3% in postmenopausal women
May improve sleep quality and duration by 15-20%
Potential to enhance deep sleep phases, crucial for recovery and cognitive function
Possible improvements in memory and mental clarity
Potential neuroprotective effects, particularly in age-related cognitive decline
May enhance neuroplasticity and neuron regeneration
Typical dose: 200-300 mcg per day
Often divided into 1-3 doses
Recommended cycle: 8-12 weeks on, 4 weeks off
Higher dose: 300-500 mcg per day
Usually divided into 1-2 doses
Best administered post-workout and before bed
Cycle length: 12-16 weeks, followed by 4-6 weeks off
Dose range: 3-10 mcg per kg of body weight
Typically administered 1-2 times daily
Duration of studies often ranges from 4-24 weeks
Recommended dose: 200-300 mcg per day
Often administered in the evening to mimic natural GH pulses
Long-term cycles of 6 months or more may be used, with regular monitoring
Typical dose: 100-200 mcg before bed
Can be used consistently or cycled 5 days on, 2 days off
Use bacteriostatic water to reconstitute the lyophilized powder
Add water slowly, allowing it to trickle down the side of the vial
Gently swirl the vial to mix, avoid shaking to prevent protein denaturation
Calculate the correct dosage based on concentration (e.g., 1000 mcg/ml)
Use sterile syringes and needles for each injection
Recommended needle size: 29-31 gauge, 1/2 inch length
Common injection sites: abdomen (2 inches away from navel), thigh, or upper arm
Rotate injection sites to prevent irritation and lipohypertrophy
Administer on an empty stomach or at least 2 hours after eating
For optimal results, avoid eating for 30-60 minutes post-injection
Popular combination for enhanced GH release
Typical dosage: 200-300 mcg of each, administered together
May increase GH release by up to 10 times compared to ipamorelin alone
May provide synergistic effects
Dosages should be adjusted when combined (typically 100-200 mcg each)
Can lead to more pronounced hunger effects, especially with GHRP-6
Combines a GHRP with a GHRH analogue
Can potentially mimic natural GH release more closely
Typical dosage: 200-300 mcg ipamorelin + 100-200 mcg sermorelin
Injection site reactions (redness, swelling)
Headaches (reported in 10-15% of users)
Flushing (5-10% of users)
Nausea (less common, 2-5% of users)
Increased appetite (may be beneficial for some users)
Water retention (typically mild and transient)
Not approved by the FDA for human use
Legal status varies by country and jurisdiction
Often restricted to research or medical use
Banned by WADA for competitive athletes (falls under S2 category: Peptide Hormones, Growth Factors, Related Substances, and Mimetics)
In the US, it's legal to possess for research purposes but not for human consumption
Always check local laws before purchasing or using ipamorelin
Store lyophilized powder at room temperature (20-25°C or 68-77°F) away from light
Once reconstituted, store in the refrigerator (2-8°C or 36-46°F)
Use within 30 days after reconstitution
Do not freeze reconstituted ipamorelin
Always use sterile techniques when handling
Discard any unused reconstituted peptide after 30 days
Results may vary, but some users report noticeable changes within 3-6 months of consistent use. Improved sleep and recovery may be noticed within the first few weeks, while changes in body composition typically take 2-3 months to become apparent.
While not primarily a weight loss drug, ipamorelin may contribute to fat loss as part of its effects on body composition. Studies have shown a potential reduction in body fat percentage of 5-10% over 3-6 months of use.
Long-term safety data is limited. Use should be monitored by a healthcare professional. Some studies have shown safe use for up to 12 months, but regular health check-ups and blood tests are recommended.
Yes, ipamorelin can be used by women. Some studies suggest it may be particularly beneficial for postmenopausal women in terms of body composition and bone density. However, it should not be used during pregnancy or breastfeeding.
While some protocols suggest cycling (e.g., 12 weeks on, 4 weeks off), others propose longer-term use under medical supervision. The need for cycling may depend on individual response and health markers.
Ipamorelin shows promise as a selective growth hormone secretagogue with potential benefits for body composition, recovery, and anti-aging. The typical dosage range of 200-500 mcg per day appears effective for most applications, with specific dosages tailored to individual goals and responses.
Its high specificity for growth hormone release and low side effect profile make it an attractive option for those seeking the benefits of increased GH without some of the risks associated with other peptides or exogenous GH administration.
However, its use should be approached cautiously due to limited long-term safety data and varying legal status. Always consult with a healthcare professional before starting any peptide regimen, and ensure regular monitoring of health markers during use.
As research continues, our understanding of ipamorelin's full potential and optimal use protocols may evolve. Stay informed about the latest studies and guidelines to make the most informed decisions about ipamorelin use.
Raun K, et al. (1998). Ipamorelin, the first selective growth hormone secretagogue. European Journal of Endocrinology, 139(5), 552-561.
Svensson J, et al. (1998). The GH secretagogues ipamorelin and GH-releasing peptide-6 increase bone mineral content in adult female rats. Journal of Endocrinology, 159(1), 149-154.
Jimenez-Reina L, et al. (2002). Evaluation of growth hormone (GH) secretion and the effects of GH replacement therapy in adults with GH deficiency. Medicina Clinica, 118(11), 401-410.
Kojima M, Kangawa K. (2005). Ghrelin: structure and function. Physiological Reviews, 85(2), 495-522.
Sigalos JT, Pastuszak AW. (2018). The Safety and Efficacy of Growth Hormone Secretagogues. Sexual Medicine Reviews, 6(1), 45-53.
Granata R, et al. (2007). Acylated and unacylated ghrelin promote proliferation and inhibit apoptosis of pancreatic beta-cells and human islets: involvement of 3',5'-cyclic adenosine monophosphate/protein kinase A, extracellular signal-regulated kinase 1/2, and phosphatidyl inositol 3-Kinase/Akt signaling. Endocrinology, 148(2), 512-529.
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Veldhuis JD, et al. (2001). Differential impact of age, sex steroid hormones, and obesity on basal versus pulsatile growth hormone secretion in men as assessed in an ultrasensitive chemiluminescence assay. Journal of Clinical Endocrinology & Metabolism, 86(11), 5465-5473.
Ghigo E, et al. (1994). Growth hormone-releasing hormone combined with arginine or growth hormone secretagogues for the diagnosis of growth hormone deficiency in adults. Endocrine, 3(1), 21-26.
Van Cauter E, et al. (1997). Reciprocal interactions between the GH axis and sleep. Growth Hormone & IGF Research, 7(Suppl A), 47-54.
Copinschi G, et al. (1997). Sleep disturbances, daytime sleepiness, and quality of life in adults with growth hormone deficiency. Journal of Clinical Endocrinology & Metabolism, 82(7), 2017-2023.
Aberg ND, et al. (2006). Peripheral infusion of IGF-I selectively induces neurogenesis in the adult rat hippocampus. Journal of Neuroscience, 26(34), 8854-8862.
Nyberg F, Hallberg M. (2013). Growth hormone and cognitive function. Nature Reviews Endocrinology, 9(6), 357-365.
Merriam GR, et al. (2003). Growth hormone releasing hormone and growth hormone secretagogues in normal aging. Endocrine, 22(1), 41-48.
Giustina A, Veldhuis JD. (1998). Pathophysiology of the neuroregulation of growth hormone secretion in experimental animals and the human. Endocrine Reviews, 19(6), 717-797.
Sigalos JT, Pastuszak AW. (2018). The Safety and Efficacy of Growth Hormone Secretagogues. Sexual Medicine Reviews, 6(1), 45-53.
Corpas E, et al. (1993). Growth hormone (GH)-releasing hormone-(1-29) twice daily reverses the decreased GH and insulin-like growth factor-I levels in old men. Journal of Clinical Endocrinology & Metabolism, 77(2), 522-527.
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