Ipamorelin
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Route(s): Subcutaneous
Typical vial sizes: 2, 5, 10 mg
Dosing window: Pre-Bed Fasted
Receptor / target: GHS-R1a
Properties: GH Secretagogue
Pre-mixed: No
Protocol examples
Standard Protocol
| Timeframe | Dose | Notes |
|---|---|---|
| Weeks 1-12 | 100mcg - 200mcg once daily | Administered pre-bed, usually stacked with CJC-1295. |
Protocol example from the source dataset; verify against the evidence status and listed sources.
Alternative: Saturation Protocol
| Timeframe | Dose | Notes |
|---|---|---|
| Weeks 1-12 | 300mcg 2x to 3x daily | Ipamorelin has a saturation dose of roughly 300mcg/injection. Dosing higher yields diminishing returns. |
Alternative example from the source dataset; not an approved-label regimen unless marked above.
Alternative Titration 2: Gradual Approach
| Timeframe | Dose | Notes |
|---|---|---|
| Weeks 1-2 | 100 mcg 1x Daily at bedtime fasted | |
| Weeks 3-4 | 150 mcg 1x Daily at bedtime fasted | |
| Weeks 5-8 | 200 mcg 1x Daily at bedtime fasted | |
| Weeks 9-12 | 250 mcg 1x Daily at bedtime fasted |
Alternative example from the source dataset; not an approved-label regimen unless marked above.
Protocol logic check
Independent evidence
Regulatory status: unapproved or compounded peptide with FDA safety risk flag
Storage
No approved-label storage guidance was identified for this entry. Use conservative sterile handling and see the general storage guidance in the FAQ.
Contraindications & cautions
Evidence varies by item. Some points come from labels, published literature, or regulatory context; others are mechanism-based cautions from the source dataset. Use the sources below to verify details.
- Active cancer or history of malignancy: GH/IGF-1 elevation may promote tumor cell proliferation.
- History of hormone-sensitive malignancies (breast, prostate, colorectal): IGF-1 is a growth factor for these tumor types.
- Active acromegaly or pituitary disorders involving GH excess.
- Diabetic ketoacidosis.
- Diabetes mellitus or significant insulin resistance: GH elevation reduces insulin sensitivity; monitor fasting glucose.
- Concurrent use with GHRP-2 or GHRP-6: receptor competition at GHS-R1a; do not combine two GHRPs.
- Concurrent use with HGH 191aa: additive GH elevation creates redundant axis overstimulation.
- Concomitant glucocorticoid therapy: suppresses pituitary GH response.
- Pregnancy: safety not established.
- Breastfeeding: safety not established.
- Known hypersensitivity to ipamorelin or any formulation excipients.
- Pediatric use in children with closed growth plates.
- Severe cardiac disease or heart failure: GH elevation can increase cardiac workload.
Possible side effects
Evidence varies by item. Some points come from labels, published literature, or regulatory context; others are mechanism-based cautions from the source dataset. Use the sources below to verify details.
- Headache: most commonly reported adverse effect; caused by acute GH pulse-induced vasodilation; typically occurs in the first 1-2 weeks and diminishes with continued use; reported in approximately 20-35% of users in early weeks.
- Mild fatigue or lethargy: transient; within 30-60 minutes post-injection; associated with the GH pulse.
- Dizziness or lightheadedness: approximately 10-15% anecdotally; transient vasodilation; resolves within 30 minutes.
- Injection site irritation: redness, swelling, minor discomfort; reported in approximately 20-30% with subcutaneous injection.
- Mild water retention: GH-mediated sodium and fluid retention; approximately 15% anecdotally; less than CJC-1295 alone; more common in first 2-4 weeks.
- Mild nausea: rare; less than 5% at standard doses; more common at 300mcg+.
- Slight increase in appetite: modest orexigenic effect from GHS-R1a activation; minimal compared to GHRP-6.
- Joint stiffness: GH-mediated periarticular fluid; typically at higher-dose multi-injection protocols.
- Tingling or numbness in hands or feet: paresthesia; less common than with CJC-1295 DAC.
- Vivid dreams: GH elevation during nocturnal sleep cycle.
- Transient mild hypoglycemia: possible when combining with CJC-1295 in a fasted state; GH pulse transiently shifts glucose partitioning.
- Long-term insulin resistance (theoretical, dose and duration dependent): sustained IGF-1 elevation may reduce insulin sensitivity over extended cycles; no direct evidence from ipamorelin-specific studies.
Compatibility
The relationships below come from the source site's internal engine and were not verified independently. Treat them as a starting point for a conversation with a clinician. They carry no safety guarantee.
Reported synergistic:
Reported contraindicated combinations: