Source comparison
CJC-1295 Variants: Rhythm Preservation vs Sustained Elevation
CJC-1295 no DAC (modified GRF 1-29) ~30 minutes Single amplified pulse per dose, clears within 90–120 min Preserved. Ultradian and circadian patterns intact Circadian studies, pulse dynamics, feedback loop research Required for any protocol measuring natural r
This comparison does not assign a generated winner or score.
- CJC-1295 no DAC (modified GRF 1-29)
- ~30 minutes
- Single amplified pulse per dose, clears within 90–120 min
- Preserved. Ultradian and circadian patterns intact
- Circadian studies, pulse dynamics, feedback loop research
- Required for any protocol measuring natural rhythm; DAC variants obscure the data you need
- CJC-1295 with DAC
- 6–8 days
- Sustained supraphysiologic elevation across multiple days
- Flattened. Pharmacologic override of endogenous rhythm
- Long-term IGF-1 production studies, convenience dosing
- Useful for mean GH output but destroys temporal resolution
- Native GHRH (1-44)
- <10 minutes
- Brief pulse, rapidly degraded by DPP-IV
- Preserved but technically challenging to dose
- Acute receptor response studies
- Gold standard for receptor biology but impractical for multi-day rhythm observation
- Tesamorelin (GHRH analog)
- ~45 minutes
- Single pulse, slightly longer than no-DAC
- Preserved with extended pulse duration
- HIV lipodystrophy research, short-term GH dynamics
- Similar rhythm preservation to no-DAC but higher cost