Mod-GRF 1-29 Calculator
Mod-GRF 1-29 (also known as CJC-1295 without DAC) reconstitution and dosage reference — calculate vial concentration, BAC water volume, and exact syringe units below.
At the reference preset of a 5mg Mod-GRF 1-29 vial reconstituted with 2 mL of bacteriostatic water, a 0.1mg dose measures 4 units on a U-100 insulin syringe.
Mod-GRF 1-29 (also called CJC-1295 without DAC) is a tetrasubstituted analogue of GHRH 1-29 with a half-life of approximately 30 minutes — long enough to be practical but short enough to preserve a pulsatile GH profile.
- Concentration
- 2.5 mg/mL
- Draw volume
- 0.04 mL
- Units (U-100)
- 4
- Doses per vial
- ≈ 50
- Reference preset
- 5mg · 2mL · 0.1mg
Reference values from the default preset — adjust the calculator below for your vial.
What is Mod-GRF 1-29?
Mod-GRF 1-29 (also called CJC-1295 without DAC) is a tetrasubstituted analogue of GHRH 1-29 with a half-life of approximately 30 minutes — long enough to be practical but short enough to preserve a pulsatile GH profile.
| 2 mg | lyophilized powder |
| 5 mg | lyophilized powder |
| 0.05 mg | ≈ 2 U-100 units (at 5mg / 2mL) |
| 0.1 mg | ≈ 4 U-100 units (at 5mg / 2mL) |
| 0.2 mg | ≈ 8 U-100 units (at 5mg / 2mL) |
How it's typically prepared
Reconstitute with BAC water; refrigerate.
Frequently asked questions
- How is Mod-GRF different from CJC-1295 with DAC?
- Mod-GRF lacks the DAC modification that binds to albumin, so its half-life is ~30 minutes vs. ~6–8 days for the DAC version.
Where researchers source this
Vendors below have been manually vetted for third-party COA practice and shipping reliability. Verify the current Certificate of Analysis on the vendor's product page before purchase.
PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.

