CJC-1295 Without DAC: The Gold Standard for Pulsatile GH Research
What is CJC-1295 Without DAC (Mod GRF 1-29)?
CJC-1295 Without DAC is a synthetic peptide consisting of 29 amino acids. It is a modified version of the naturally occurring GHRH (1-29) sequence. By substituting four specific amino acids, scientists have created a version that is significantly more resistant to enzymatic degradation while maintaining a natural half-life. Unlike its counterpart (CJC-1295 with DAC), this version does not bind to albumin, allowing for precise, controlled bursts of Growth Hormone (GH).
Mechanism of Action: How it Works
In a laboratory setting, CJC-1295 Without DAC acts as a selective agonist of the GHRH receptors in the anterior pituitary gland.
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GHRH Emulation: It mimics the signaling of the hypothalamus to trigger the production of endogenous GH.
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Pulsatile Secretion: By avoiding the “Drug Affinity Complex,” it ensures that GH levels return to baseline between pulses, preserving the sensitivity of the pituitary-somatotropic axis.
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Synergy with GHRPs: It is frequently studied alongside GHRP-2 or Ipamorelin to observe synergistic effects on IGF-1 elevation.
Key Research Applications
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Metabolic Regulation: Investigating lipid metabolism and adipose tissue reduction.
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Tissue Repair: Observing the rate of cellular regeneration and collagen synthesis.
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Muscle Hypertrophy: Analyzing the correlation between GH pulses and lean muscle mass preservation.
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Deep Sleep Studies: Studying the impact of increased GH on slow-wave sleep cycles.
4. Technical Specifications (E-E-A-T Data)
| Feature | Detail |
| Molecular Formula | $C_{152}H_{252}N_{44}O_{42}$ |
| Molecular Weight | 3367.9 g/mol |
| CAS Number | 448944-47-6 |
| Purity | $\geq$98% (HPLC Tested) |
| Appearance | White Lyophilized Powder |
| Storage | Stable at Room Temp (90 days); -20°C recommended long-term. |
5. Product FAQ
Q: What is the difference between CJC-1295 with DAC and without DAC? A: CJC-1295 with DAC has a half-life of 6–8 days due to its albumin-binding complex. CJC-1295 Without DAC (Mod GRF 1-29) has a 30-minute half-life, making it ideal for researchers wanting to mimic natural, pulsatile GH release.
Q: How should CJC-1295 Without DAC be stored? A: For maximum stability, store the lyophilized powder in a freezer at -20°C. Once reconstituted, it should be kept refrigerated between 2°C and 8°C and used within 14–21 days.


