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CJC-1295: With & Without DAC Protocol

Understanding the two versions of CJC-1295. DAC vs no-DAC half-life differences, dosing frequencies, pulsatile vs sustained GH release, and stacking with GHRPs.

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By Peptides.NYC Editorial TeamUpdated May 21, 2026
Educational content only — not medically reviewed. Consult a licensed healthcare provider before acting on anything here.

Educational content only. Not medical advice. The content creators are not doctors or medical professionals. Consult your healthcare provider before taking any action.

CJC-1295: With & Without DAC Protocol

Category: Protocols Type: Protocol Read Time: 14 minutes Author: Peptides.NYC Editorial Last Updated: 2026-04-10 URL: https://peptides.nyc/learn/cjc-1295-protocol


Overview

Understanding the two versions of CJC-1295. DAC vs no-DAC half-life differences, dosing frequencies, pulsatile vs sustained GH release, and stacking with GHRPs.

What is CJC-1295?

CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH). It stimulates the pituitary gland to produce and release growth hormone naturally.

Key Properties:

  • 29 amino acid peptide (modified GHRH)
  • Stimulates natural GH production
  • Available in two forms: with DAC and without DAC
  • Works synergistically with GHRPs

CJC-1295 with DAC vs Without DAC

The Critical Difference:

DAC (Drug Affinity Complex):

  • Extends half-life dramatically
  • Binds to albumin in blood
  • Creates sustained GH elevation
PropertyWith DACWithout DAC (Mod GRF 1-29)
Half-life6-8 days30 minutes
Dosing1-2x weekly2-3x daily
GH PatternSustained elevationPulsatile release
IGF-1Consistently elevatedPulsatile
Side EffectsMore potentialFewer
Natural PatternLess naturalMore natural

Which to Choose?

CJC-1295 no DAC (Mod GRF 1-29) is Preferred For:

  • Mimicking natural GH release pattern
  • Stacking with GHRPs (Ipamorelin, GHRP-2)
  • Lower side effect profile
  • More control over timing

CJC-1295 with DAC May Be Chosen For:

  • Convenience (weekly dosing)
  • Those who can't inject daily
  • Sustained IGF-1 elevation goals

CJC-1295 No DAC Protocol

Standard Dosing:

DoseFrequencyTiming
100mcg2-3x dailyEmpty stomach

Optimal Protocol:

Morning (fasted): 100mcg Pre-workout (optional): 100mcg Before bed: 100mcg

Stacking with Ipamorelin (Most Popular):

  • CJC-1295 no DAC: 100mcg
  • Ipamorelin: 100-200mcg
  • Taken together, same syringe OK
  • 2-3x daily

Why This Stack Works:

  • GHRH (CJC) + GHRP (Ipamorelin) = synergistic effect
  • Greater GH release than either alone
  • Mimics natural GH pulsatility
  • Clean side effect profile

CJC-1295 with DAC Protocol

Standard Dosing:

DoseFrequency
1-2mgOnce weekly

Alternative Protocol:

  • 0.5mg twice weekly
  • More stable levels
  • May reduce side effects

Important Notes:

  • Do NOT stack with DAC version and GHRPs same day
  • Sustained elevation different from pulsatile
  • May cause more water retention
  • Higher IGF-1 elevation (consider cancer risk)

Expected Benefits

Sleep & Recovery:

  • Deeper sleep (noticeable within days)
  • Improved REM sleep
  • Faster recovery from training
  • Reduced muscle soreness

Body Composition:

  • Enhanced fat loss
  • Improved muscle retention
  • Better body recomposition over time
  • Subtle but significant changes

Anti-Aging:

  • Improved skin quality
  • Better hair/nail growth
  • Increased energy
  • General vitality

Performance:

  • Enhanced recovery
  • Improved endurance
  • Better strength gains
  • Joint health support

Reconstitution Guide

For 2mg Vial:

  • Add 1ml BAC water = 2mg/ml
  • 100mcg = 0.05ml (5 units)

For 5mg Vial:

  • Add 2ml BAC water = 2.5mg/ml
  • 100mcg = 0.04ml (4 units)

Storage:

  • Refrigerate after mixing
  • Stable 2-3 weeks
  • Protect from light

Timing Optimization

The Fasting Rule:

  • Inject 2+ hours after eating
  • Wait 30+ minutes before eating
  • Fats and carbs blunt GH response

Best Timing:

  1. Morning fasted - Natural GH pulse time
  2. Before bed - Amplifies nighttime GH
  3. Pre-workout - Recovery support

What Blunts GH Release:

  • Recent food intake (especially carbs/fats)
  • Elevated blood sugar
  • Elevated free fatty acids
  • Not giving enough time before eating

Side Effects

CJC-1295 no DAC (Minimal):

  • Injection site irritation
  • Head rush (brief)
  • Flushing (rare)
  • Water retention (mild)

CJC-1295 with DAC (More Potential):

  • Significant water retention
  • Numbness/tingling
  • Joint pain
  • Fatigue
  • Potential for elevated IGF-1 concerns

Managing Side Effects:

  • Start with lower doses
  • Titrate up gradually
  • Monitor water retention
  • Take breaks if needed

Cycling Recommendations

CJC-1295 no DAC:

  • 8-16 weeks on
  • 4 weeks off
  • Or: 5 days on, 2 days off continuously

CJC-1295 with DAC:

  • 8-12 weeks maximum
  • 4-8 weeks off
  • Monitor IGF-1 levels

Signs of Desensitization:

  • Reduced effectiveness
  • Diminishing returns
  • Water retention increasing

Bloodwork Monitoring

Baseline (Before Starting):

  • IGF-1 levels
  • Fasting glucose
  • Fasting insulin
  • Complete metabolic panel

During Protocol (Every 8 weeks):

  • IGF-1 (main marker)
  • Fasting glucose
  • Liver enzymes

Optimal IGF-1 Range:

  • Upper-normal for age
  • Avoid super-physiological levels
  • Work with healthcare provider

Common Questions

Q: Can I mix CJC-1295 and Ipamorelin in the same syringe? A: Yes, for the no DAC version. Mix in same syringe to simplify.

Q: Morning or evening dosing more important? A: Before bed is most important (amplifies natural sleep GH pulse). Morning fasted is second priority.

Q: How soon will I notice effects? A: Sleep improvements often within days. Body composition changes over weeks to months.

Q: Is CJC-1295 legal? A: Available as a research peptide. Not FDA-approved for human use. Banned by WADA for athletes.


Related Content


Disclaimer: This content is for educational purposes only and is not medical advice. CJC-1295 is a research compound not FDA-approved for human use. Consult a healthcare provider before starting any peptide protocol.

Source: https://peptides.nyc/learn/cjc-1295-protocol

Not medically reviewed

This content is produced by the Peptides.NYC editorial team from published research. It has not been reviewed by a licensed clinician and is educational only — always consult your healthcare provider before starting, stopping, or adjusting any peptide protocol.

Written By

Editorial team. We cite published research; we are not licensed clinicians and content is not medically reviewed.

Peptide researchHealth writingEvidence synthesis

This article cites peer-reviewed research and medical literature. Click any reference to view the original source.

  1. 1

    Teichman SL, Neale A, Lawrence B, Gagnon C, Castaigne JP, Frohman LA (2006) Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults Journal of Clinical Endocrinology & Metabolism.

    PMID: 16352683DOI: 10.1210/jc.2005-1536View on PubMed
  2. 2

    Ionescu M, Frohman LA (2006) Pulsatile secretion of growth hormone (GH) persists during continuous stimulation by CJC-1295, a long-acting GH-releasing hormone analog Journal of Clinical Endocrinology & Metabolism.

    PMID: 17018654DOI: 10.1210/jc.2006-1702View on PubMed
  3. 3

    Jetté L, Léger R, Thibaudeau K, et al. (2005) Human growth hormone-releasing factor (hGRF)1-29-albumin bioconjugates activate the GRF receptor on the anterior pituitary in rats: identification of CJC-1295 as a long-lasting GRF analog Endocrinology.

    PMID: 15817669DOI: 10.1210/en.2004-1286View on PubMed
  4. 4

    Alba M, Fintini D, Sagazio A, Lawrence B, Castaigne JP, Frohman LA, Salvatori R (2006) Once-daily administration of CJC-1295, a long-acting growth hormone-releasing hormone (GHRH) analog, normalizes growth in the GHRH knockout mouse American Journal of Physiology - Endocrinology and Metabolism.

    PMID: 16822960DOI: 10.1152/ajpendo.00201.2006View on PubMed

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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.