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.

Mod-GRF 1-29 Calculator

Also known as: CJC-1295 without DAC

GHS

Default: 5mg / 2mL / 0.1mgAdjust inputs to match your vial

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About

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.

Common vial sizes

2 mg	lyophilized powder
5 mg	lyophilized powder

Reference dose ranges

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)

Reconstitution

How it's typically prepared

Reconstitute with BAC water; refrigerate.

FAQ

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.

Sources

References

PubMed search: Mod-GRF 1-29 CJC-1295

Sourcing

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.

Particle Peptides

EU-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.

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Other GHS peptides

Notice

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.