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For research and educational purposes only. Not intended for human consumption.

Ipamorelin

Well Researched
Updated Dec 2025

Growth Hormone Secretagogue | Selective GHRP

Injectable
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200-300mcg
1-3x daily
Injectable
Belly
3-6 months
Typical duration
2-8°C
Refrigerated

Overview

What is Ipamorelin?

Ipamorelin is a selective growth hormone releasing peptide (GHRP) that stimulates natural growth hormone production from the pituitary gland. Known for its clean profile with minimal side effects on cortisol and prolactin levels, making it ideal for body composition, recovery, and anti-aging applications. Phase II clinical trials confirm safety and tolerability in healthy adults, with ongoing research into synergistic combinations with CJC-1295 for enhanced GH optimization. Banned by WADA

Key Benefits

Optimal growth hormone stimulation with precise dosing and superior bioavailability. Most effective method for body composition, recovery, and anti-aging applications with minimal side effects. Preclinical data shows bone growth promotion and muscle preservation against steroid-induced breakdown.

Mechanism of Action

Injectable Ipamorelin mimics ghrelin to stimulate pituitary GH release selectively without affecting cortisol, prolactin, or causing significant hunger. Research shows enhanced tetanic tension and muscle preservation in glucocorticoid-damaged models when combined with CJC-1295.

Molecular Information

711.85 Da
Weight
5
amino acids
Growth hormone secretagogue
Type
Amino Acid Sequence:
Aib-His-D-2-Nal-D-Phe-Lys-NH₂
* Contains non-natural amino acids (Aib, D-2-Nal, D-Phe) and C-terminal amidation

Pharmacokinetics

Peak
~40 min (GH peak)
Half-life
~2 hrs (up to 6 hrs high dose)
Cleared
~10-24 hrs
100%50%0%0h6h12h18h24h
Peak
Half-life
Cleared
Raun et al. 1998 - Clinical dose-escalation

Research Indications

Natural GH Stimulation

Stimulates pituitary gland to release growth hormone naturally with consistent elevation 30-60 minutes post-injection.

IGF-1 Enhancement

Increases insulin-like growth factor-1 production through natural GH pathways.

Anti-Aging Benefits

Supports cellular regeneration, collagen synthesis, and metabolic function through enhanced growth hormone pathways.

Research Protocols

Disclaimer: Ipamorelin has a saturation dose (~100mcg) beyond which additional GH release diminishes. Split dosing 2-3x daily is commonly discussed for pulsatile release. Protocols often run 3-6 months followed by 1-2 month breaks. This is not medical advice.

GoalDoseFrequencyRoute
General Health & Longevity200mcg1x daily before bedSubQ
Body Composition250-300mcg2x daily (morning, pre-workout)SubQ
Athletic Performance200-250mcg2-3x dailySubQ
Sleep & Recovery200mcg1x daily 30min before bedSubQ
Anti-Aging Protocol200-250mcg1-2x dailySubQ

Timing: Injectable Ipamorelin is most effective on an empty stomach. For sleep benefits, inject 30 minutes before bed. For body composition, consider morning fasted injection or pre-workout timing.

Peptide Interactions

How to Reconstitute

Important: Always use bacteriostatic water (BAC). Sterile technique is essential.

1

Clean work area and hands thoroughly with antibacterial soap

2

Gather all materials and let refrigerated peptide reach room temperature

3

Calculate required BAC water volume using the calculator

4

Draw calculated BAC water amount into syringe

5

Inject BAC water slowly down the side of vial (never directly onto powder)

6

Gently swirl vial until completely dissolved (never shake vigorously)

7

Store reconstituted solution in refrigerator, use within 28 days

Dosing Calculator

Calculate your injection volume with visual dosing guide

FINAL CONCENTRATION
2.50mg/mL
Each milliliter contains 2.50 mg of peptide
VISUAL REFERENCE (RESEARCH USE ONLY)

To obtain 250 mcg from this solution:

Draw 0.10 mL=10 units

(1 mL = 100 units on any insulin syringe)

0102030405060708090100
00.10.20.30.40.50.60.70.80.91.0
0.10 mL
10 units

Draw to this mark for 250 mcg

This calculator is for research purposes only. Always verify calculations and consult protocols.

Quality Indicators

White, Fine Crystalline Powder

Quality Ipamorelin appears as white, fine crystalline powder filling the vial bottom.

Clear Solution After Reconstitution

When properly mixed with BAC water, solution should be crystal clear.

Mild Hunger Response

Quality Ipamorelin should produce mild hunger increase 20-30 minutes after injection.

Slight Drowsiness (Bedtime Doses)

When taken before bed, may cause mild drowsiness as GH release promotes natural sleep onset.

Yellow or Discolored Powder

Any discoloration suggests degradation or contamination.

No Physiological Response

Lack of any response after 1-2 weeks may indicate inactive peptide.

What to Expect

  • Week 1-2: Improved sleep quality, deeper sleep, better morning energy
  • Week 2-4: Enhanced recovery from exercise, reduced muscle soreness
  • Week 4-8: Body composition improvements, increased lean mass, fat loss
  • Week 8-12: Continued improvements in muscle tone, skin quality, energy
  • Side effects: Minimal, occasional mild hunger 20-30 minutes post-injection
  • Most effective for: Sleep optimization, body recomposition, anti-aging

Side Effects & Safety

Side Effects

  • Use sterile injection technique to prevent infection
  • May cause mild hunger increase 20-30 minutes post-injection
  • Monitor for receptor desensitization after 3-4 months
  • Cycle off periodically to maintain effectiveness
  • Not recommended during pregnancy, breastfeeding, or active cancer

When to Stop

  • Signs of infection at injection site
  • Allergic reactions
  • Unusual swelling or discomfort
  • If advised by healthcare provider
  • Before any medical procedures

References

5 Studies

Phase II Postoperative Ileus Trials

Human | Double-blind placebo-controlled | NCT01280344 | GI recovery post-surgery

Completed Phase II trials evaluated Ipamorelin's safety and efficacy versus placebo for gastrointestinal recovery after bowel resection, demonstrating good tolerability in surgical populations.

Bone Growth Promotion Study

Rodent model | Various doses | Bone density markers

Preclinical research demonstrated bone growth promotion and muscle preservation against steroid-induced breakdown, with enhanced tetanic tension when combined with CJC-1295.

CJC-1295/Ipamorelin Combination Research

Animal model | Glucocorticoid-damaged muscle | Synergistic effects

Combination therapy with CJC-1295 showed improved tetanic tension and muscle recovery in glucocorticoid-damaged tissue, supporting complementary sustained vs rapid GH pulse mechanisms.

Quick Start Guide

Typical Dose
200-300mcg
How Often
1-3x daily
Where to Inject
Belly
Timing
Empty stomach, bedtime optimal for sleep benefits
Effects Timeline
2-4 weeks for sleep/recovery, 6-8 weeks for body composition
Storage
Refrigerate 2-8°C, use within 28 days
Cycle Length
3-6 months
Break Between
1-2 months

Research Disclaimer

Ipamorelin is sold for laboratory research purposes only and is not intended for human or animal consumption. The information provided on this page is compiled from published research, veterinary studies, and anecdotal reports for educational purposes. This content does not constitute medical advice, diagnosis, or treatment recommendations. Any research involving Ipamorelin must comply with all applicable local, state, and federal regulations. BioInfinity Lab makes no claims regarding the safety or efficacy of Ipamorelin for any purpose. Consult qualified professionals for any research applications.