Mechanism
CJC-1295 With DAC vs Without DAC: Mechanism Comparison
Same parent molecule, different pharmacokinetics. DAC (drug affinity complex) binds CJC-1295 to albumin, extending half-life from minutes to days. The two formats serve different research goals.
Side-by-side comparison
| Attribute | CJC-1295 with DAC | CJC-1295 without DAC (Mod GRF 1-29) |
|---|---|---|
| Half-life | ~8 days | ~30 minutes |
| GH release pattern | Sustained baseline elevation | Pulsatile, natural mimic |
Key differences
- ·DAC extends half-life from roughly 30 minutes to about 8 days
- ·Without DAC, GH pulses match natural pulsatility, ideal when combined with a GHRP
- ·With DAC, IGF-1 rises sustainably but pulsatility is blunted
- ·administration interval: DAC weekly, no DAC three times daily
Research summary
Teichman et al. (2006) demonstrated sustained GH and IGF-1 elevation with DAC formulation over 7 days. Pulsatile GH biology is preserved with non-DAC variants, which is why bodybuilding and clinical study designs still use mod GRF 1-29 when natural pulsatility matters.