CJC-1295 without DAC (Mod GRF 1-29)
Sermorelin with four amino acids swapped so it lasts about 30 minutes instead of a few; usually paired with ipamorelin.
Not approved for human use; sold as a research chemical.
Used for
- Pulsed GH release, paired with a GHRP such as ipamorelin
- Sleep, recovery, body composition
How it works
A GHRH analog: pairing it with a ghrelin mimetic (ipamorelin, GHRP-2/6) releases much more GH than either alone.
Half-life: about 30 minutes
What the research shows
- No published human trials of Mod GRF 1-29 itself; the case rests on GHRH biology and sermorelin data.
Dosing
Dosing isn’t listed on the public site. In the app, each published option is shown with its source (a drug label, a clinical guideline, a trial or community reports) and can be turned into a protocol you review.
Work out the units to draw for your vial →Side effects
- Flushing and warmth right after the dose
- Tingling, water retention
Cautions
- Raises GH and IGF-1. Avoid with active cancer or a history of it; can raise blood sugar. Check IGF-1 and fasting glucose on bloodwork.
- Prohibited in tested sports (WADA).
- Research-chemical vials have no quality control: purity, dose and sterility vary. Third-party testing helps but is no guarantee.
Storage
Unmixed powder: freezer or fridge, away from light.
Once mixed with bacteriostatic water: fridge; the common rule is to use it within 28 days.
There is no label or published stability data for this one, so treat these as habits, not limits.
Stability once mixed
Reworked from sermorelin: the methionine and asparagine weak spots are swapped out, so it should hold up better, but it is still a plain peptide in water. Community often keeps a mixed vial 2 to 3 weeks.
Heat, shaking, freezing a mixed vial, light and many needle punctures all speed breakdown. Toss it if it turns cloudy, grows specks or changes color.
More in Growth hormone
Reference only, not medical advice. Written for this app from the cited research. Doses marked community-reported are not from trials.