Ipamorelin
The cleanest growth hormone secretagogue — targeted GH pulse with no cortisol or prolactin side effects.
Category
Growth Hormone
Frequency
1–3x daily
Research
Phase 2 Clinical TrialsWhat is Ipamorelin?
Ipamorelin is a selective growth hormone secretagogue (GHS) and ghrelin receptor agonist that stimulates the pituitary gland to release growth hormone in a pulsatile, natural pattern. Unlike earlier GH-releasing peptides (GHRP-2, GHRP-6), Ipamorelin has extremely high selectivity — it triggers GH release without causing spikes in cortisol, prolactin, ACTH, or LH.
This selectivity makes Ipamorelin one of the most popular GH peptides for long-term use. Users can experience the benefits of elevated GH (improved body composition, recovery, sleep quality, and skin) without the hormonal side effects that complicate other GH-releasing compounds.
Ipamorelin is most commonly used in the CJC-1295/Ipamorelin stack, which is considered the gold-standard GH protocol in the peptide community. CJC-1295 extends the GH pulse while Ipamorelin initiates it, creating a synergistic effect that more closely mimics the body's natural GH rhythm.
How It Works
Ghrelin Receptor Agonism: Ipamorelin binds to the GHSR (growth hormone secretagogue receptor), also known as the ghrelin receptor, in the pituitary gland, triggering a burst of GH release.
Selective Action: Unlike GHRP-2 and GHRP-6, Ipamorelin does not significantly activate pathways for cortisol, prolactin, or other hormones — producing a clean GH pulse.
Pulsatile Release: Ipamorelin works best when used to mimic the body's natural pulsatile GH release pattern — typically 1–3 doses per day at strategic times (fasted, pre-workout, pre-sleep).
Benefits
- Increased lean muscle mass and improved body composition
- Accelerated fat loss (particularly when combined with diet)
- Improved sleep quality and recovery
- Faster healing of injuries and connective tissue
- Improved skin quality and reduced wrinkles
- Increased bone mineral density
- Clean GH pulse — no cortisol or prolactin elevation
Dosing Protocol
| Phase | Dose | Frequency | Duration |
|---|---|---|---|
| Standard | 200–300mcg | 1–2x daily | 8–12 weeks |
| CJC/Ipa Stack | 100–200mcg Ipa | With CJC-1295 dose | 12–16 weeks |
| Sleep Protocol | 200mcg | Before sleep (fasted) | Ongoing |
Always start at the lowest effective dose and titrate up gradually.
Side Effects
Common
- ⚠Water retention (mild, especially early on)
- ⚠Tingling in hands or feet (common, usually temporary)
- ⚠Mild headache in first week
- ⚠Increased hunger (mild compared to GHRP-6)
Rare
- •Injection site reaction
- •Temporary numbness
- •Lightheadedness if taken too quickly
Who Should NOT Use Ipamorelin
- ✕Active cancer (GH can stimulate growth)
- ✕Diabetic retinopathy
- ✕Pregnancy or breastfeeding
- ✕Severe hypothyroidism (optimize thyroid first)
What to Expect
Improved sleep quality often noticed first. Some water retention. Increased hunger (mild).
Recovery noticeably faster. Skin quality improving. Body composition beginning to shift (more lean, less fat).
Significant lean mass gains, especially when combined with resistance training. Fat loss accelerates.
Full benefits realized. Most users cycle 12 weeks on, 4 weeks off. Long-term users may use indefinitely at lower doses.
FAQ
Q: Should I use Ipamorelin alone or with CJC-1295?
A: The CJC-1295/Ipamorelin combination is far superior to either alone. CJC-1295 (no DAC) extends the duration of the GH pulse while Ipamorelin initiates it. Together they produce a more sustained, higher GH release. See the CJC/Ipamorelin Protocol.
Q: When is the best time to inject Ipamorelin?
A: Before sleep is optimal — GH naturally peaks during deep sleep and adding Ipamorelin amplifies this. Many users also dose before workouts. Always inject fasted (nothing for 2+ hours) as insulin blunts GH release.
Q: How long should an Ipamorelin cycle be?
A: 8–16 weeks on, 4–8 weeks off is typical. The off period prevents desensitization of the pituitary. Some experienced users run longer cycles or use indefinitely at lower doses.
Where to Get Ipamorelin in Vietnam
See our community-verified supplier list with COA verification and cold-chain shipping to Vietnam.
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