One peptide, two very different pharmacokinetic profiles. Here is the DAC vs no-DAC decision framed as research reference.
| Attribute | With DAC | No-DAC (Mod GRF 1-29) |
|---|---|---|
| Half-life | Multi-day (~6–8 days) | ~30 minutes |
| GH release pattern | Sustained bleed | Pulsatile (mimics native GHRH) |
| Dosing frequency (research) | Weekly | Multiple daily pulses |
| Preferred pairing | Rarely combined with GHSR | Frequently combined with ipamorelin |
The choice depends on the research question. Pulsatile GH kinetics require no-DAC; sustained exposure requires DAC.
Research use only. All information on this page is provided strictly for in-vitro and laboratory research reference. Nothing in this article is medical, therapeutic, dosing, or performance advice for human or veterinary use.



