Mod GRF 1-29 is a modified version of the GHRH 1-29 fragment carrying four amino-acid substitutions that improve stability against dipeptidyl peptidase degradation, extending its half-life in experimental systems. Researchers use it to deliver sustained GHRH-receptor stimulation in GH-axis studies with reduced dosing frequency. This product is a white lyophilized powder at >=99% HPLC purity in a sealed vial. We supply full quality records, flexible pack sizes and reliable cold-chain shipping for long-term studies. All items are dispatched in plain, discreet packaging to protect buyer privacy, and high-value orders may be split into multiple parcels for customs safety. Delivery times to most destinations range from a few days to two weeks depending on the region and courier selected.

Mod GRF 1-29 is a meticulously crafted modified version of the GHRH 1-29 fragment, a key peptide in growth hormone regulation, that undergoes four strategic amino-acid substitutions. These precise modifications act as a shield, significantly enhancing its stability against the relentless degradation by dipeptidyl peptidase enzymes—those molecular scavengers that would otherwise quickly break it down. As a result, Mod GRF 1-29 boasts an extended half-life within experimental systems, lingering longer in the biological milieu to exert its intended effects. This enhanced persistence transforms it from a fleeting signal into a more sustained messenger, allowing for prolonged interaction with target receptors and a deeper, more consistent influence on growth hormone release pathways, painting a clearer picture of its potential in therapeutic and research applications.