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.
How to use this calculator›
- 1. Vial — the peptide amount printed on the vial, in milligrams.
- 2. BAC water — the bacteriostatic water added to the vial. More water means a lower concentration and a larger, easier-to-read draw.
- 3. Dose — the single dose being measured, in milligrams.
- 4. Syringe — the barrel being drawn into. The diagram rescales to that syringe, so the same dose sits at a different mark on a 0.3 mL barrel than on a U-100.
Educational reference only — not medical advice or a dosing recommendation.
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.
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.
Ascension PeptidesUSA-based research vendor (Castle Rock, Colorado) publishing a per-batch Certificate of Analysis library with public lot IDs, so a vial can be matched to its own COA before and after purchase. Recent HPLC purity 99.79–99.98% across the catalog. Ships from the US and carries the full GLP-1 reference range alongside repair, longevity and cosmetic compounds.
Buy CJC-1295 no DAC 10mg →Affiliate link — we may earn a commission at no extra cost to you.
Particle PeptidesEU-based vendor (Slovakia, since 2015) shipping to EU, UK, and Switzerland. The only European supplier publishing all seven test parameters per batch (purity, identity, content, bioburden, endotoxins, heavy metals class 1 & 2). Manufacturer is cGMP / ISO 9001 / ISO 13485 compliant.
Buy Mod GRF 1-29 (CJC-1295 no DAC) 5mg →Affiliate link — we may earn a commission at no extra cost to you.
| 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.
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.