Source comparison
CJC-1295 vs CJC-1295 With DAC: Research Peptide Comparison
Half-life ~30 minutes 6–8 days The DAC modification fundamentally changes pharmacokinetics. One mimics endogenous GHRH clearance, the other doesn't Dosing frequency 2–3 times daily Once weekly Multiple daily doses allow pulse-timing control; weekly dosing elim
This comparison does not assign a generated winner or score.
- Half-life
- ~30 minutes
- 6–8 days
- The DAC modification fundamentally changes pharmacokinetics. One mimics endogenous GHRH clearance, the other doesn't
- Dosing frequency
- 2–3 times daily
- Once weekly
- Multiple daily doses allow pulse-timing control; weekly dosing eliminates that flexibility
- GH secretion pattern
- Pulsatile (discrete bursts)
- Tonic (sustained elevation)
- Pulsatile patterns preserve feedback regulation; tonic stimulation does not
- Typical dose
- 100–200 mcg per injection
- 1–2 mg per week
- Total weekly exposure is comparable, but distribution across time differs dramatically
- Reconstituted stability
- 28 days refrigerated
- Both require cold chain management post-reconstitution. No stability advantage
- Research fit
- Protocols requiring pulse timing, circadian alignment, or physiological GH patterns
- Protocols requiring sustained IGF-1 elevation independent of pulse architecture
- Choose based on whether temporal control matters to your experimental question