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Overview
What is CJC-1295 with DAC?
CJC-1295 with DAC (Drug Affinity Complex) is a modified version of growth hormone releasing hormone (GHRH) engineered for extended duration. The addition of DAC technology extends the half-life to 6-8 days, providing continuous growth hormone elevation rather than pulsatile release. This long-acting formulation offers convenience but differs significantly from natural GH secretion patterns.
Key Benefits
Convenient weekly dosing, sustained GH/IGF-1 elevation, significant body composition changes
Mechanism of Action
DAC technology binds to albumin, extending half-life to 6-8 days and providing continuous GHRH receptor stimulation
Molecular Information
Weight
3,647.28 Da
Length
30 amino acids
Type
GHRH analog with DAC
Amino Acid Sequence:
Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Val-Leu-Ala-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Leu-Ser-Arg-Lys
* Drug Affinity Complex (DAC) extends half-life to 6-8 days, allows weekly dosing
Pharmacokinetics
Research Indications
Sustained GH Elevation
Provides continuous growth hormone release for 6-8 days per injection
IGF-1 Optimization
Significantly elevates IGF-1 levels for extended periods
Convenience Protocol
Weekly dosing schedule ideal for those seeking simple administration
Research Protocols
Disclaimer
Cycling (8-12 weeks on, 4-8 weeks off) is commonly discussed to help maintain pituitary sensitivity from continuous GHRH stimulation. Unlike the non-DAC version, a loading phase is generally not reported due to the long half-life. This is not medical advice. Consult a healthcare provider before use.
Timing
Due to long half-life, injection timing is flexible. Many prefer morning injections to monitor for side effects during the day.
Peptide Interactions
How to Reconstitute
Important
Always use bacteriostatic water (BAC). Sterile technique is essential.
Clean both vial tops with alcohol and let dry completely
For 2mg vial: Add 1mL bacteriostatic water (creates 2mg/mL concentration)
For 5mg vial: Add 2.5mL bacteriostatic water (creates 2mg/mL concentration)
Inject water very slowly to prevent foaming - DAC peptides foam easily
Let sit for 5 minutes before gently rolling to mix
Solution may appear slightly cloudy initially but should clear
Label with date and concentration immediately
Quality Indicators
High purity requirement
DAC peptides require >98% purity - impurities cause more side effects
Proper DAC labeling
Legitimate products clearly state "with DAC" to distinguish from regular CJC-1295
More expensive than non-DAC
DAC version costs 2-3x more due to complex manufacturing
Foaming during mixing
Normal for DAC peptides to foam - wait for foam to settle
Extremely cheap pricing
If priced similar to non-DAC version, likely mislabeled or fake
Clear solution immediately
Should be slightly cloudy initially - immediate clarity may indicate non-DAC
What to Expect
- Week 1: Possible water retention, improved sleep, increased appetite
- Week 2-3: Noticeable recovery improvements, some report joint discomfort
- Week 4-6: Visible body composition changes, increased vascularity
- Week 6-8: Continued improvements but watch for desensitization signs
- Post-cycle: Maintain most gains, IGF-1 returns to baseline in 2-3 weeks
Side Effects & Safety
- Higher side effect incidence than pulsatile protocols
- Common: Water retention, joint pain, carpal tunnel symptoms
- Monitor for signs of excessive GH: jaw growth, hand/feet enlargement
- Not suitable for those with diabetes or cancer history
- May worsen sleep apnea in predisposed individuals
- Regular IGF-1 monitoring recommended for long-term use
References
Comparative Pharmacokinetics: DAC vs Non-DAC Variants (2015)
DAC version showed 120-hour half-life versus 30-minute half-life of non-DAC, but non-DAC preserved more physiological GH patterns.
Long-term Effects on GH/IGF-1 Axis (2012)
Chronic administration led to sustained IGF-1 elevation but some evidence of reduced GH pulse amplitude, suggesting partial desensitization.
Dose-Response Relationship of CJC-1295 DAC (2008)
Established optimal dosing at 1-2mg weekly, showing dose-dependent IGF-1 increases but also higher side effect incidence at doses above 2mg.
Quick Start Guide
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Community Insights
Self-reported by PepPedia users. Not clinical evidence. Health changes reflect all users, including those taking multiple compounds.
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