What Is Mod GRF 1-29?
Category: Peptide
Another name for CJC-1295 without DAC. A modified fragment of GHRH that provides short-acting growth hormone amplification, typically dosed 2-3x daily.
Detailed Explanation
Mod GRF 1-29 (Modified Growth Releasing Factor, amino acids 1-29) is an alternative name for CJC-1295 without DAC. It is a modified version of the first 29 amino acids of natural GHRH, with four amino acid substitutions to increase its stability and half-life compared to natural GHRH. The term 'Mod GRF 1-29' is sometimes preferred in research settings to distinguish it clearly from CJC-1295 with DAC, which has very different pharmacokinetics.
Practical Context
Mod GRF 1-29 and CJC-1295 without DAC are the same peptide sold under different names. When purchasing, be careful to verify which version you are getting - the with-DAC version has a completely different dosing schedule (weekly vs. multiple daily). Mod GRF 1-29 is the preferred GHRH analog for pairing with Ipamorelin due to its short half-life producing natural pulsatile GH patterns.
Frequently Asked Questions
Is Mod GRF 1-29 the same as CJC-1295?
Mod GRF 1-29 is the same as CJC-1295 WITHOUT DAC. CJC-1295 WITH DAC is a different product with a much longer half-life and different dosing protocol.
Related Peptides
- CJC-1295 (no DAC) - A GHRH analog that stimulates growth hormone release without the Drug Affinity Complex. (Dosage | Calculator)
- Ipamorelin - A selective GH secretagogue with minimal effect on cortisol or prolactin. (Dosage | Calculator)
Related Terms
- CJC-1295 - A synthetic analog of growth hormone releasing hormone (GHRH). Available in two forms: with DAC (long-acting, dosed weekly) and without DAC/Mod GRF 1-29 (short-acting, dosed 2-3x daily).
- DAC (Drug Affinity Complex) - A chemical modification added to CJC-1295 that extends its half-life from minutes to about 8 days by binding to serum albumin in the blood.
- GHRH (Growth Hormone Releasing Hormone) - A category of peptides that amplify growth hormone pulses. Examples include CJC-1295 and Sermorelin. Most effective when combined with a GHRP.