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Growth Hormone Axis

CJC-1295 (No DAC) + Ipamorelin

A pre-mixed combination of two different growth hormone stimulators that work via separate pathways, producing a synergistic pulse that’s stronger than either alone; without increasing cortisol or appetite.

Research referenceCommunity compiled
Research & reference information

This profile compiles research and community-sourced reference information for educational purposes. Information may evolve as research and community knowledge develop. It is not individualized medical advice.

Overview

A pre-mixed combination of two different growth hormone stimulators that work via separate pathways, producing a synergistic pulse that’s stronger than either alone; without increasing cortisol or appetite.

What It Does

Pre-mixed GHRH + GHRP stack, amplified, synergistic GH pulse from two different receptor pathways in one injection.

CJC-1295 (No DAC) stimulates GHRH receptors.

Ipamorelin activates GHS-R1a ghrelin receptors.

Reconstitution

Vial SizeBAC Water / SolventConcentration
10 mg+ 3 mL3.33 mg/mL
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Protocol

PhaseFrequencyAmountNotes
Weeks 1–2Nightly pre-bed200 mcgStart low and assess how your body responds before increasing.
Weeks 3–12Nightly pre-bed400 mcgStandard effective dose for most users.
Off4 weeks–Off period, let your pituitary and receptors recover before the next cycle.
Cycle & Timing

12 weeks on / 4 weeks off. Max 16 weeks on / 4–8 weeks off; receptor desensitization beyond 16 weeks continuous.

Timing

Fasted, pre-bed is standard; the pulse lands with the natural deep-sleep GH release, which is why this stack is the go-to for sleep + recovery. No food 90 min before / 60 min after; fasted AM works if pre-bed is impractical. Sleep: GHRH promotes slow-wave sleep, most notice deeper sleep in 1–2 weeks.

Population Considerations

Women make ~3× the GH of men yet have similar IGF-1, they’re less responsive, so often need a higher dose to move IGF-1. Oral estrogen blunts IGF-1 further (read it as running low); a skin patch/gel is more predictable. Men: Men convert GH to IGF-1 more efficiently and more often overshoot the age ceiling (a higher malignancy signal), aim mid-normal for age, don’t chase the Women make ~3× the GH of men yet have similar IGF-1, they’re less responsive, so often need a higher dose to move IGF-1. Oral estrogen blunts IGF-1 further (read it as running low); a skin patch/gel is more predictable. Men: Men convert GH to IGF-1 more efficiently and more often overshoot the age ceiling (a higher malignancy signal), aim mid-normal for age, don’t chase the top.

Handling & Stacking

Injection site
Abdomen. Single injection delivers both.
Storage
Freeze-dried: -4°F. Reconstituted: 36–46°F. Best used within 28 days, otherwise potency gradually fades over ~4–6 weeks (structure-based estimate, no published data).
Side effects
Water retention, mild fatigue, tingling.
What to expect
Improved sleep depth within 1–2 weeks. Recovery and energy improvement at 4–6 weeks. Body composition changes at 8–12 weeks. Supply math 10mg → 4 vials (12-wk @ 400 mcg × 7/wk)
Pairs well with
BPC-157 / TB-500 (tissue repair on GH backbone); IGF-1 LR3 (downstream amplification)
Avoid
Active malignancy. Type 2 diabetes without monitoring (GH worsens insulin resistance)
Approved drug
Somatropin (HGH) is approved for growth-hormone deficiency and tesamorelin (Egrifta) for HIV lipodystrophy. Secretagogues like this one are off-label.

Safety & Patient Education

Contraindications
Active malignancy of any kind (GH/IGF-1 can promote tumor growth) Severe diabetic retinopathy Acute critical illness (per somatropin label, applies to GH-axis stimulators) Pregnancy and lactation
Warnings
Insulin resistance and worsening glycemic control with sustained use Fluid retention, peripheral edema Carpal tunnel syndrome with extended use Joint and muscle pain IGF-1 elevation: theoretical malignancy promotion if dosed beyond physiological IGF-1 ranges Combined GHRH+GHRP use requires off cycles to prevent receptor desensitization
Drug interactions
Glucocorticoids: blunt GH response, minimize or time away from injection Insulin / antidiabetics: GH worsens insulin resistance, expect dose adjustments + tighter monitoring Levothyroxine: GH lowers free T4, recheck TSH/fT4 quarterly Oral estrogens: blunt GH-stimulated IGF-1, transdermal doesn’t CYP3A4 narrow-TI substrates (cyclosporine, tacrolimus, sirolimus): recheck troughs after starting
Labs
  • Compound-specific: IGF-1 (baseline + Week 8 + end), Lipid panel (Week 0/12) IGF-1 at baseline, mid-cycle, and end of cycle.
  • Target ULN for age Fasting glucose and HbA1c at baseline and end of cycle Mammogram and prostate screening per age-appropriate guidelines before starting Out of range?
  • IGF-1 above your age range = too much growth signal (feeds hidden cancer, enlarges organs) → drop the dose; rising glucose/HbA1c = sugar creeping up.
Stop criteria
Fasting glucose rises >20 mg/dL above baseline IGF-1 rises above the upper limit of normal for age New persistent joint pain or carpal tunnel symptoms New skin changes or moles enlarging Vision changes
Patient education
GH-axis stimulation is not appropriate during active malignancy or for fertility Most GH pulses occur during deep sleep, dose pre-bed unless instructed otherwise Food within 90 min of injection blunts GH response (carbs/fats most), fasted is standard Report new lumps, persistent headaches, or vision changes immediately
References
peptidedosages · PubMed · thepeptidereport · Span 2000 · Weissberger 1991