Source comparison
CJC-1295 with DAC vs No DAC: Research Application Comparison
Plasma Half-Life 8+ days (albumin-bound) ~30 minutes (rapid DPP-IV degradation) DAC modification extends clearance time by over 380-fold, fundamentally altering dosing requirements Dosing Frequency Once weekly 1–3 times daily Weekly dosing reduces injection bu
This comparison does not assign a generated winner or score.
- Plasma Half-Life
- 8+ days (albumin-bound)
- ~30 minutes (rapid DPP-IV degradation)
- DAC modification extends clearance time by over 380-fold, fundamentally altering dosing requirements
- Dosing Frequency
- Once weekly
- 1–3 times daily
- Weekly dosing reduces injection burden but eliminates pulsatile control
- GH Release Pattern
- Sustained tonic elevation for 6–13 days
- Sharp pulsatile spike lasting 90–120 minutes
- Pulsatile dosing better preserves endogenous GH rhythm and receptor sensitivity
- IGF-1 Elevation
- Sustained 1.5–2.5× baseline throughout interval
- Fluctuating. Peaks post-dose, declines between doses
- Sustained IGF-1 may offer more consistent anabolic signaling but risks receptor downregulation
- Recommended Use Cases
- Protocols requiring stable baseline GH elevation without daily dosing
- Protocols prioritizing preservation of natural pulsatile secretion or requiring dosing flexibility
- Modified GRF 1-29 allows precise timing around exercise, sleep, or fasting windows