Premium Modified GRF (1-29) 5mg (aka CJC-1295 w/o DAC)

Premium Mod-GRF 5 mg (Modified GRF (1-29) / CJC-1295 without DAC) Overview Modified GRF (1-29), also known as CJC-1295 without DAC, is a synthetic peptide in the growth hormone-releasing hormone (GHRH) family. It is widely studied in biochemical and physiological research for its ability to stimulate the natural release of growth hormone (GH) from the pituitary gland. This Premium 5 mg version offers the same high-purity formulation as the standard 2 mg product but in a larger quantity for extended research use. Mod-GRF (1-29) lacks the Drug Affinity Complex (DAC) component found in other CJC-1295 analogues, resulting in a shorter half-life while retaining full biological potency. This makes it especially suitable for investigating pulsatile GH secretion and natural endocrine signalling patterns.

Scientific Background Growth hormone plays a central role in cell growth, metabolism, repair, and regeneration. Mod-GRF (1-29) represents the biologically active fragment of endogenous GHRH — the first 29 amino acids responsible for receptor binding and activity. By mimicking this natural sequence, Mod-GRF (1-29) triggers GH release from the pituitary in a rhythmic, physiological manner, closely resembling the body’s own pattern. This makes it a key model for exploring hormonal regulation, growth factor pathways, and metabolic adaptation in research settings.

Mechanism of Action Mod-GRF (1-29) binds to GHRH receptors in the anterior pituitary gland, activating intracellular signalling cascades that increase cyclic AMP (cAMP) levels and calcium ion concentrations — resulting in GH secretion. Key characteristics include:

Shorter half-life than DAC-modified versions, promoting natural pulse frequency.

Endogenous regulation rather than artificial GH elevation.

Synergistic potential when studied alongside GHRP-class peptides.

This precise mimicry of physiological GH pulsation makes Mod-GRF (1-29) a versatile tool in studies involving growth hormone dynamics and metabol