Ipamorelin
Growth Hormone Secretagogue | Selective GHRP
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What is Ipamorelin?
Ipamorelin is a small, lab-made peptide that mimics the hunger hormone ghrelin, studied for its ability to prompt the pituitary gland to release growth hormone in a more selective way than older compounds in its class. Research literature reports it has comparatively little effect on cortisol or prolactin compared with other growth-hormone secretagogues. It's sold here strictly as a research chemical for laboratory study, not for use in people or animals.
Key terms:
Ipamorelin is a growth hormone secretagogue.
Ipamorelin is a selective growth hormone releasing peptide (GHRP). Researchers study it for prompting the pituitary gland to release the body's own growth hormone. Its research profile is comparatively clean: reported effects on cortisol and prolactin levels are minimal. It is researched for body composition, recovery, and aging-related applications.
Key research areas
- Growth hormone stimulation studied with precise dosing protocols
- Improved bioavailability via injectable administration
- Studied as an injectable method for body composition research
- Recovery-related research with minimal reported side effects
- Aging-related research applications with minimal reported cortisol/prolactin impact
Researched dosing
This table shows how researchers have structured study dosing schedules for Ipamorelin — published research methodology and dose ranges, not personal usage instructions.
| Phase | Dose | Frequency | Route |
|---|---|---|---|
| General health and longevity | 200mcg | 1x daily before bed | SubQ |
| Body-composition studies | 250-300mcg | 2x daily (morning, pre-workout) | SubQ |
| Athletic-performance studies | 200-250mcg | 2-3x daily (morning, pre/post workout) | SubQ |
| Sleep and recovery studies | 200mcg | 1x daily 30min before bed | SubQ |
| Longevity protocols | 200-250mcg | 1-2x daily (morning, bedtime) | SubQ |
Commonly cycled 24 weeks on, 8+ weeks off.
How it works
At the cell level, Ipamorelin research looks at how the peptide binds ghrelin receptors in the pituitary to trigger a natural, pulsed burst of growth hormone release — the selectivity for this one receptor is what separates it from older, less targeted secretagogues.
Injectable Ipamorelin provides direct systemic delivery for consistent GH pulse stimulation. Binds selectively to ghrelin receptors in the pituitary to stimulate natural GH release without affecting cortisol, prolactin, or causing significant hunger.
Molecular data
These figures — molecular weight, five-amino-acid sequence, chain length — are the chemistry fingerprint researchers use to confirm a sample really is Ipamorelin; at just five amino acids, it's one of the smaller peptides studied in this encyclopedia.
- Weight
- 711.85 Da
- Length
- 5 amino acids
- Type
- Growth hormone secretagogue
Aib-His-D-2-Nal-D-Phe-Lys-NH₂
Pharmacokinetics
This chart shows how quickly a research dose of Ipamorelin is absorbed and cleared in the literature — the short, fast curve is part of why study protocols often use multiple small doses across the day rather than one large dose.
- Peak
- 0.667 hr
- Half-life
- 2 hrs
- Cleared
- ~10 hrs
Raun et al. 1998
Research applications
This section lists the body systems and research areas scientists have studied for Ipamorelin — a summary of what's been investigated in the literature, not medical claims about people.
Growth Hormone
Stimulates pituitary gland to release growth hormone naturally with consistent elevation 30-60 minutes post-injection, maintaining natural pulsatile patterns. Increases insulin-like growth factor-1 production through natural GH pathways, mediating growth hormone's beneficial effects on muscle, bone, and tissue. Supports cellular regeneration, collagen synthesis, and metabolic function through enhanced growth hormone pathways without disrupting natural hormone balance.
Body Composition
Enhanced body composition improvements including increased lean mass and fat reduction through GH-mediated mechanisms.
Recovery
Supports recovery from exercise and reduces muscle soreness through GH-mediated tissue repair processes.
Dosage reference
- Doses used in research
- 200–300 mcg
- Frequency in studies
- 1-3x daily
- Handling
- Reconstituted solution — research use only; not for administration
- Timeline reported in studies
- 2-4 weeks for sleep/recovery, 6-8 weeks for body composition
- Storage
- Refrigerate 2-8°C, use within 28 days after reconstitution
- Cycle length
- 3-6 months
- Break between cycles
- 1-2 months
Interactions
This list shows which other growth-hormone-axis peptides researchers study alongside Ipamorelin, and flags pairings the literature suggests warrant closer monitoring.
Reconstitution & storage
This is the standard laboratory method for turning freeze-dried Ipamorelin powder into a liquid research solution — the same basic water-based mixing process used for most peptide research.
- Clean work area and hands thoroughly with antibacterial soap
- Gather all materials and let refrigerated peptide reach room temperature
- Calculate required BAC water volume using the calculator below
- Draw calculated BAC water amount into syringe
- Inject BAC water slowly down the side of vial (never directly onto powder)
- Gently swirl vial until completely dissolved (never shake vigorously)
- Store the reconstituted solution refrigerated (2–8°C), labeled with the date and concentration, for laboratory research use only.
Lyophilized: 2-8°C, use within As per manufacturer; refrigerate
Reconstituted: 2-6°C, use within Use within 28 days
Open the Ipamorelin reconstitution calculatorQuality indicators
These are the visual and lab-report checks researchers use to confirm an Ipamorelin sample is pure and correctly identified before it goes into a study.
White, Fine Crystalline Powder - Quality Ipamorelin appears as white, fine crystalline powder filling the vial bottom. Proper lyophilization indicator with no clumping.
Clear Solution After Reconstitution - When properly mixed with BAC water, solution should be crystal clear with no particles, cloudiness, or floating debris.
Mild Hunger Response - Quality Ipamorelin should produce mild hunger increase 20-30 minutes after injection, indicating proper ghrelin receptor activation.
Slight Drowsiness (Bedtime Doses) - When taken before bed, quality Ipamorelin may cause mild drowsiness as growth hormone release promotes natural sleep onset.
Yellow or Discolored Powder - Any discoloration, yellowing, or brown spots suggests degradation or contamination. Quality Ipamorelin should be pure white.
No Physiological Response - Lack of any hunger response, sleep improvement, or effects after 1-2 weeks may indicate inactive, degraded, or fake peptide.
What to expect
This timeline summarizes what research literature reports at each stage of a study — context for comparing studies, not a personal-results promise.
Improved sleep quality, deeper sleep, better morning energy
Enhanced recovery from exercise, reduced muscle soreness
Body composition improvements, increased lean mass, fat reduction
Continued improvements in muscle tone, skin quality, energy
Safety notes
This section covers handling cautions and regulatory notes for Ipamorelin in a laboratory setting — research-use-only scope and receptor-sensitivity monitoring drawn from the literature, not medical safety advice for people.
- Not recommended during pregnancy, breastfeeding, or active cancer
- Monitor for receptor desensitization after 3-4 months of continuous use
- Cycle off periodically to maintain effectiveness and receptor sensitivity
- Research compound - not FDA approved for human use
- Use sterile injection technique to prevent infection
Regulatory status
- Not approved by the FDA for any indication.
- Supplied and described for laboratory research use only — not for human or veterinary use.
Community data
Community Insights
Based on data the community reported. Not clinical proof.
Frequently asked questions
What is Ipamorelin?
Ipamorelin is a small, synthetic peptide — just five amino acids — classified as a selective growth hormone secretagogue. The research literature describes it as binding ghrelin receptors in the pituitary and having comparatively little effect on cortisol or prolactin relative to older compounds in its class. Lux BioPure supplies it strictly as a research chemical for laboratory study, not for use in people or animals.
What class of compound is Ipamorelin?
Ipamorelin is classified as a growth hormone secretagogue, specifically a selective growth hormone releasing peptide (GHRP). At roughly 711 daltons and five amino acids (sequence Aib-His-D-2-Nal-D-Phe-Lys-NH₂), it is one of the smaller peptides in this encyclopedia. Researchers use these molecular figures to confirm a sample's identity. It is sold for laboratory research use only.
How is Ipamorelin typically reconstituted for research use?
In laboratory settings, lyophilized Ipamorelin powder is reconstituted with bacteriostatic water: the diluent is added slowly down the vial wall rather than onto the powder, then the vial is gently swirled — never shaken — until the solution is clear. The reconstituted research solution is labeled with its date and concentration and refrigerated. This is standard peptide-handling methodology, not a usage instruction.
How should reconstituted Ipamorelin be stored in the lab?
Lyophilized Ipamorelin is kept refrigerated at 2–8°C per its manufacturer guidance, and once reconstituted with bacteriostatic water the solution should be refrigerated at roughly 2–6°C and used within about 28 days. Researchers confirm a good sample by its white, fine crystalline powder and a clear, particle-free solution after gentle mixing, checked against the Certificate of Analysis.
Is Ipamorelin legal to purchase for research in Canada?
Lux BioPure sells Ipamorelin in Canada strictly as a research-use-only chemical for laboratory study — it is not for human or veterinary use and is not offered as a drug or supplement. Ipamorelin is a research compound that is not FDA approved for human use, and sterile technique is advised when handling it in the laboratory.
References
Comprehensive safety analysis confirmed Ipamorelin's excellent tolerability profile with minimal side effects and no adverse impacts on hormone axis.
Enhanced recovery from training stress, improved muscle protein synthesis, and reduced exercise-induced inflammation in athletic populations.
Bedtime administration significantly improved sleep latency, increased slow-wave sleep duration, and enhanced next-day recovery markers.