Evidence-based peptide information for research and educational purposes only.
GH Secretagogues

Ipamorelin

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Protocol not independently verified FDA safety flag GH Axis
Educational reference only. Read the full disclaimer. The protocols below are not automatically an FDA-approved or clinically verified regimen unless explicitly marked as label-verified or human-trial protocol above.

Overview

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

TimeframeDoseNotes
Weeks 1-12100mcg - 200mcg once dailyAdministered pre-bed, usually stacked with CJC-1295.

Protocol example from the source dataset; verify against the evidence status and listed sources.

Alternative: Saturation Protocol

TimeframeDoseNotes
Weeks 1-12300mcg 2x to 3x dailyIpamorelin 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

TimeframeDoseNotes
Weeks 1-2100 mcg 1x Daily at bedtime fasted
Weeks 3-4150 mcg 1x Daily at bedtime fasted
Weeks 5-8200 mcg 1x Daily at bedtime fasted
Weeks 9-12250 mcg 1x Daily at bedtime fasted

Alternative example from the source dataset; not an approved-label regimen unless marked above.

Protocol logic check

Protocol context: GH-axis protocols are not 'more is better.' The logic is pulse quality, recovery time, IGF-1/glucose monitoring, and avoiding receptor desensitization, edema, appetite spikes, numbness, or blood-pressure strain. Entry context: target (GHS-R1a); route Subcutaneous; timing Pre-Bed Fasted. Unapproved or source-dataset dosing tables are hypotheses, not recommendations. FDA/safety flags lower confidence and raise the evidence bar for any claimed benefit. Compatibility is conditional: a reasonable solo compound can become inappropriate once a contraindicated partner is added. GH-axis stacking should be filtered for total IGF-1/glucose burden, not just expected synergy.

Independent evidence

Independent safety notes: FDA lists ipamorelin acetate in category 2/withdrawn lists with immunogenicity/impurity concerns and serious adverse events reported in IV literature.

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:

Sources