Modified GRF (1-29)
Also known as: Mod GRF, CJC-1295 without DAC
Clinical Status
Investigational — research compound widely used in combination protocols.
Mechanism of Action
Modified version of the first 29 amino acids of GHRH with amino acid substitutions at positions 2, 8, 15, and 27 to resist enzymatic degradation. Stimulates pituitary GH release with improved stability over native GHRH.
Dosing Defaults
Dose
100-200 mcg
Frequency
2-3x daily
Administration
Subcutaneous injection
Timing
Before bed or morning (fasted)
Food
fasted
Duration
8-12 weeks
Dose range: 100-300 mcg per dose
Best combined with a GHRP at the same time. Fasted state maximizes GH pulse.
Side Effects
- •Facial flushing
- •Injection site reactions
- •Headache
- •Dizziness
- •Water retention
Contraindications & Warnings
- ⚠Active malignancy
- •Not medical advice
Compare
Compare Modified GRF (1-29) with another peptide side-by-side.
Calculate Dose
Use the reconstitution calculator to prepare your Modified GRF (1-29) dose.
Open CalculatorAd
Related Growth Hormone Peptides
This information is for educational purposes only and is not medical advice. Dosing data is based on research literature and community reports. Always consult a qualified healthcare provider before using any peptide.