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CJC-1295 DAC (CJC-1295 with Drug Affinity Complex)

Category: Growth Hormone. Status: Research compound.

CJC-1295 conjugated with DAC that binds albumin, extending half-life to ~8 days. Creates sustained GH elevation rather than pulsatile release.

How it works

The DAC moiety binds serum albumin creating a depot that slowly releases active CJC-1295 for continuous GHRH signaling.

Key facts

  • Molecular weight: 3,647 Da
  • Half-life: 8 days
  • Bioavailability: High (SubQ)
  • Storage: Lyophilized: -20°C. Reconstituted: 2-8°C for 21 days.

Dosing overview

  • Typical dose: 2 mg
  • Frequency: 1-2x per week
  • Duration: 8-16 weeks
  • Route: Subcutaneous

Reported benefits

  • Once/twice weekly dosing
  • Sustained IGF-1 elevation
  • Convenient schedule
  • Long-term body composition changes

Possible side effects

  • Water retention
  • Tingling/numbness
  • Flushing
  • Non-pulsatile GH pattern
  • Fatigue

Research

  • Pharmacokinetics of DAC-conjugated CJC-1295 (2019): Single 2mg dose elevated IGF-1 by 50-70% for 9-11 days via albumin-bound release.
  • Sustained vs pulsatile GH elevation outcomes (2020): DAC version produced greater total GH exposure but less favorable body composition vs pulsatile non-DAC.

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Research and educational reference only. Not medical advice.