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Quick answer
Ipamorelin protocols described in the literature commonly outline a 100-300mcg range taken on an empty stomach, often once before bed and sometimes one to three times daily. As the most selective GHRP, it is characterized as releasing growth hormone without notably affecting cortisol, prolactin, or appetite, which sources associate with a minimal side-effect profile.
Ipamorelin: The Gentle GHRP Protocol
Category: Protocols Type: Protocol Read Time: 12 minutes Author: Peptides.NYC Editorial Last Updated: 2026-04-10 URL: https://peptides.nyc/learn/ipamorelin-protocol
Overview
The cleanest growth hormone releasing peptide. Minimal side effects profile, selective GH release without affecting cortisol/prolactin, dosing strategies, and why it is ideal for beginners.
What is Ipamorelin?
Ipamorelin is a growth hormone releasing peptide (GHRP) that stimulates the pituitary gland to release natural growth hormone. It's considered the most selective and well-tolerated GHRP available.
Key Properties:
- Pentapeptide (5 amino acids)
- Acts on ghrelin receptor (growth hormone secretagogue receptor)
- Highly selective GH release
- Minimal effect on cortisol, prolactin, or appetite
- Mimics natural GH pulsatile release
Why Ipamorelin is the "Cleanest" GHRP
Compared to Other GHRPs:
| Factor | Ipamorelin | GHRP-2 | GHRP-6 | Hexarelin |
|---|---|---|---|---|
| GH Release | Moderate | Strong | Strong | Very Strong |
| Appetite Increase | None | Mild | Significant | Mild |
| Cortisol Increase | None | Mild | Mild | Moderate |
| Prolactin Increase | None | Mild | Mild | Moderate |
| Side Effects | Minimal | Moderate | Moderate | Higher |
| Best For | Beginners | Experienced | Bulking | Short cycles |
How Ipamorelin Works
Mechanism of Action:
- Binds to ghrelin receptors in the pituitary gland
- Stimulates natural GH release in a pulsatile pattern
- Works synergistically with natural GHRH
- Does not desensitize as quickly as other GHRPs
Why Selective Matters:
- No appetite increase (easier to maintain diet)
- No cortisol elevation (no stress hormone side effects)
- No prolactin elevation (no related issues)
- Cleaner feel with fewer side effects
Dosage Protocol
Standard Dosing:
| Dose | Frequency | Timing |
|---|---|---|
| 100-300mcg | 1-3x daily | On empty stomach |
Beginner Protocol:
- Start: 100mcg once before bed
- Week 2+: 100-200mcg before bed
- Advanced: 200-300mcg, 2-3x daily
Timing Recommendations:
- Before bed - Most important dose (amplifies natural nighttime GH)
- Morning fasted - Optional second dose
- Pre-workout - Optional third dose (30 min before)
Important Timing Notes:
- Take on empty stomach (2+ hours after eating)
- Wait 30+ minutes before eating after injection
- Fats and carbs blunt GH response
Stacking Ipamorelin
Ipamorelin + CJC-1295 no DAC (Most Popular Stack)
Synergistic GH elevation:
- CJC-1295 no DAC: 100mcg
- Ipamorelin: 200mcg
- Timing: Together, 2-3x daily
- Why: GHRH + GHRP synergy = greater GH release
Ipamorelin + BPC-157 (Recovery Stack)
For healing and recovery:
- Ipamorelin: 200mcg before bed
- BPC-157: 250-500mcg daily
- Why: GH benefits + tissue healing
Solo Ipamorelin
Perfectly effective alone for:
- Improved sleep
- Better recovery
- Body composition support
- Anti-aging benefits
Expected Benefits
Short-Term (Weeks 1-4):
- Improved sleep quality
- Increased recovery from training
- Better sense of well-being
- Subtle energy improvements
Medium-Term (Weeks 4-12):
- Improved body composition
- Enhanced fat burning
- Better skin quality
- Increased strength/endurance
Long-Term (3+ months):
- Anti-aging effects
- Joint and connective tissue health
- Sustained body composition improvements
- Overall vitality
Administration
Reconstitution:
For 5mg vial:
- Add 2ml BAC water = 2.5mg/ml
- 200mcg = 0.08ml (8 units)
Injection:
- Subcutaneous (under skin)
- Abdomen, thigh, or arm
- 29-31 gauge insulin syringe
- Rotate sites
Storage:
- Refrigerate after reconstitution
- Stable 3-4 weeks refrigerated
- Protect from light
Side Effects
Common (Usually Mild):
- Injection site irritation
- Temporary head rush (rare)
- Water retention (minimal)
- Tiredness (dose before bed anyway)
Uncommon:
- Headache
- Dizziness
- Tingling/numbness
What Sets Ipamorelin Apart:
- No significant appetite increase
- No cortisol elevation
- No prolactin issues
- Generally very well-tolerated
Who Should Use Ipamorelin
Ideal Candidates:
- First-time GHRP users
- Those sensitive to side effects
- People wanting sleep benefits
- Anti-aging focused users
- Those maintaining a calorie deficit
May Want Stronger Options:
- Experienced users wanting maximum GH
- Those actively bulking (GHRP-6 adds appetite)
- Short intense cycles (Hexarelin)
Ipamorelin vs Other Options
vs MK-677 (Ibutamoren):
| Factor | Ipamorelin | MK-677 |
|---|---|---|
| Administration | Injection | Oral |
| Duration | Pulsatile (hours) | 24-hour elevation |
| Appetite | None | Significant increase |
| Water Retention | Minimal | Moderate |
| Blood Sugar | Minimal effect | Can elevate |
| Cost | Higher (daily) | Lower (oral) |
vs Sermorelin:
| Factor | Ipamorelin | Sermorelin |
|---|---|---|
| Type | GHRP | GHRH |
| Mechanism | Ghrelin receptor | GHRH receptor |
| Best When | Any time | Morning/before bed |
| Stacking | Pairs with GHRH | Pairs with GHRP |
Cycling Recommendations
Standard Cycle:
- 12-16 weeks on
- 4-8 weeks off
- Repeat as desired
Year-Round Protocol:
- 5 days on, 2 days off
- Or 3 weeks on, 1 week off
- Prevents desensitization
Signs You May Need a Break:
- Reduced effectiveness
- Diminishing returns
- Desire to assess baseline
Related Content
- CJC-1295 Protocol
- GH Peptide Stacking Guide
- Beginner's Stack Guide
- Growth Hormone Secretagogue Protocol
Disclaimer: This content is for educational purposes only and is not medical advice. Ipamorelin is a research compound not FDA-approved for human use. Consult a healthcare provider before starting any peptide protocol.
Source: https://peptides.nyc/learn/ipamorelin-protocol
Frequently asked questions
What is ipamorelin?
Ipamorelin is a synthetic pentapeptide growth hormone-releasing peptide (GHRP) that acts on the ghrelin receptor (GHS-R) in the pituitary to stimulate natural GH release. It is considered the most selective and cleanest GHRP available, with negligible effects on cortisol, prolactin, or appetite.
What is the typical ipamorelin dosage?
Standard dosing is 100-300 mcg subcutaneously 1-3 times daily on an empty stomach. Beginners typically start at 100 mcg before bed for 1-2 weeks, then escalate to 100-200 mcg before bed. Advanced users run 200-300 mcg 2-3 times daily with morning, pre-workout, and pre-bed doses.
How long does ipamorelin take to work?
Improved sleep quality, better recovery, and subtle energy improvements often appear within weeks 1-4. Body composition changes, enhanced fat burning, and skin quality improvements develop across weeks 4-12. Sustained anti-aging effects and joint benefits are typical by 3+ months.
What are common ipamorelin side effects?
Ipamorelin is exceptionally well-tolerated. Common mild effects include injection site irritation, rare brief head rush, minimal water retention, and tiredness when dosed at night. Uncommon effects include headache, dizziness, and tingling. It does not increase appetite or elevate cortisol or prolactin.
Can you stack ipamorelin with CJC-1295?
Yes — ipamorelin plus CJC-1295 no DAC is the most popular GH peptide stack. Typical dosing is CJC-1295 100 mcg plus ipamorelin 200 mcg, taken together in the same syringe 2-3 times daily. The GHRH/GHRP synergy produces a larger GH pulse than either alone.
Is ipamorelin FDA-approved?
No. Ipamorelin is a research compound not FDA-approved for human use, though it is widely dispensed by compounding pharmacies under physician prescription. Recent FDA guidance has narrowed which peptides 503A pharmacies can compound, so availability may shift.
Is ipamorelin banned by WADA?
Yes. Ipamorelin and all other growth hormone secretagogues are banned by WADA both in and out of competition. Competitive athletes subject to anti-doping testing should not use ipamorelin.
Ipamorelin vs MK-677 — which is better?
Ipamorelin is injectable, produces pulsatile GH release, and has minimal appetite or water retention effects. MK-677 is oral, produces sustained 24-hour GH/IGF-1 elevation, significantly increases appetite, and can impair insulin sensitivity. Ipamorelin suits cutting and sensitive users; MK-677 suits convenience-focused users tolerant of appetite increases.
Written By
Editorial team. We cite published research; we are not licensed clinicians and content is not medically reviewed.
This article cites peer-reviewed research and medical literature. Click any reference to view the original source.
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Raun K, Hansen BS, Johansen NL, Thøgersen H, Madsen K, Ankersen M, Andersen PH (1998) Ipamorelin, the first selective growth hormone secretagogue European Journal of Endocrinology.
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Sigalos JT, Pastuszak AW (2018) The Safety and Efficacy of Growth Hormone Secretagogues Sexual Medicine Reviews.
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Sigalos JT, Pastuszak AW, Allison A, Ohlander SJ, Herati A, Lindgren MC, Lipshultz LI (2017) Growth Hormone Secretagogue Treatment in Hypogonadal Men Raises Serum Insulin-Like Growth Factor-1 Levels American Journal of Men's Health.
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Sinha DK, Balasubramanian A, Tatem AJ, et al. (2020) Beyond the androgen receptor: the role of growth hormone secretagogues in the modern management of body composition in hypogonadal males Translational Andrology and Urology.
Medical Disclaimer
The information on this website is for educational purposes only and is not medical advice. The content creators are not doctors or medical professionals. This content should not be used to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare provider before starting any new supplement, medication, or health protocol. You assume all risks associated with using this information.