Peptide Schedule
CJC-1295 (No DAC)29 residuesYDADIFTQSYRKVLAQLSARKLLQDILSREach bubble = one amino acid. Size = residue mass. Color = chemical class.

CJC-1295 (No DAC)

Growth HormoneInjectionResearchGrade B~30 min half-life
Growth Hormone SecretagogueGHRH AnalogPulsatile GH ReleaseAnti-AgingRecovery12 weeks on / 4 weeks off

Benefits

Natural pulsatile GH release
Synergistic when combined with Ipamorelin
No cortisol or prolactin elevation
Improves sleep and recovery
Promotes lean body composition
Half-Life
~30 min
Route
Injection
Frequency
Daily
Vial Sizes
2mg, 5mg
BAC Water
2mL
Safety Grade
Grade B
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About CJC-1295 (No DAC)

CJC-1295 without DAC (also called Mod GRF 1-29) is a short-acting GHRH analog that produces natural, pulsatile growth hormone release. Unlike the DAC version, it has a short half-life (~30 min), which means it stimulates a GH pulse that mimics the body's natural rhythm. It's most commonly stacked with Ipamorelin for synergistic GH release without cortisol or prolactin spikes.

Who Should Consider CJC-1295 (No DAC)

  • Adults over 30 experiencing age-related GH decline (somatopause)
  • Athletes and bodybuilders seeking improved recovery and body composition
  • Individuals looking to improve sleep quality and depth
  • Post-injury patients wanting faster tissue repair
  • Those who prefer natural pulsatile GH release over sustained elevation

How CJC-1295 (No DAC) Works

CJC-1295 (No DAC) binds to the GHRH receptor on pituitary somatotroph cells, amplifying the natural growth hormone pulse. Its short half-life (~30 min) means it triggers a sharp GH spike that closely mimics natural physiology, rather than sustaining elevated levels. When combined with a GHRP like Ipamorelin, it amplifies the GH pulse that Ipamorelin triggers.

What to Expect

Week 1-2

Improved sleep quality and more vivid dreams. Some users report mild water retention and occasional facial flushing after injection.

Weeks 3-4

Noticeable improvements in recovery time between workouts. Skin hydration and texture begin to improve. Increased morning energy.

Months 2-3

Body composition shifts become apparent — reduced abdominal fat and improved muscle tone. Joint and connective tissue comfort improves.

Months 3-4

Full anti-aging and recovery benefits are established. Sustained fat loss, better exercise capacity, and improved skin elasticity.

Month 5+

Benefits plateau at this stage. Cycle off for 4 weeks to maintain pituitary receptor sensitivity before restarting protocol.

Dosing Protocol

LevelDose / InjectionFrequency
Beginner100mcgDaily
Moderate100mcg2x Daily
Aggressive200mcg2x Daily

Note: Mod GRF 1-29. Best stacked with Ipamorelin. Produces natural GH pulse. Dose on empty stomach.

How to Inject CJC-1295 (No DAC)

Inject subcutaneously on an empty stomach (no food 1 hour before or 30 minutes after). Best timing is before bed or post-workout. Inject at the same time as Ipamorelin if stacking.

Cycling Protocol

On Period
12 weeks
Off Period
4 weeks

Cycle to prevent pituitary desensitization. Some users run 5 days on, 2 days off weekly.

Pharmacokinetics

Half-Life
30min
Bioavailability
SC: estimated 90-95% for short GHRH analogs
Tmax
5-15 minutes (peak GH pulse occurs 15-30 min post-injection)
Data Confidence
moderate

Source: CJC-1295 without DAC (Mod GRF 1-29) t½ ~30 min; rapid clearance drives need for multiple daily injections (Teichman et al. 2006 PMID 16352683)

Pharmacokinetics — Active Dose Over Time

Loading the interactive decay curve.

Side Effects

Facial flushing, headache, dizziness (usually brief). Injection site irritation. Best taken on empty stomach.

Contraindications

  • Active cancer or history of malignancy — GH promotes cell proliferation
  • Diabetes mellitus — GH antagonizes insulin and may worsen blood sugar control
  • Pregnancy or breastfeeding
  • Active pituitary tumors or intracranial neoplasms
  • Known hypersensitivity to GHRH analogs
  • Untreated hypothyroidism — may blunt GH response

Drug Interactions

  • Insulin and oral hypoglycemics — GH release antagonizes insulin action; monitor blood glucose closely
  • Corticosteroids — chronic use may blunt GH response and reduce efficacy
  • Other GH secretagogues (GHRP-2, GHRP-6, Ipamorelin) — additive GH release increases side effect risk; use caution when stacking
  • Thyroid hormones — GH can accelerate T4-to-T3 conversion; monitor thyroid function
  • CYP3A4-metabolized drugs — GH may alter hepatic clearance rates

Storage & Stability

Before Reconstitution
Refrigerate at 2-8°C, stable up to 12 months
After Reconstitution
Refrigerate, use within 3-4 weeks
Temperature
2-8°C (36-46°F)

Molecular Profile

Amino Acids
29
Molecular Weight
3,367.95 Da
Sequence
YDADIFTQSYRKVLAQLSARKLLQDILSR
HydrophobicPolarPositiveNegativeSpecialHow we generate these icons

Related Peptides

References

  1. Prolonged Stimulation of GH and IGF-I Secretion by CJC-1295 in Healthy AdultsPubMed 16352683
  2. Identification of CJC-1295 as a Long-Lasting GRF Analog via hGRF(1-29)-Albumin BioconjugatesPubMed 15817669
  3. Pulsatile Secretion of GH Persists During Continuous Stimulation by CJC-1295PubMed 17018654
  4. GH-Releasing Hormone-(1-29) Twice Daily Reverses Decreased GH and IGF-I Levels in Old MenPubMed 1379256
  5. Effects of a GHRH Analog on Endogenous GH Pulsatility and Insulin Sensitivity in Healthy MenPubMed 20943777

Related Resources

Frequently Asked Questions