CJC-1295 (No DAC)
Modified GRF 1-29 research peptide · 10mg
99%+ Pure$50
Product Description
CJC-1295 without DAC, also known as Modified GRF 1-29 (Mod GRF), is a tetrasubstituted GHRH analogue with a shorter half-life of approximately 30 minutes. Without the Drug Affinity Complex, this variant produces acute, pulsatile growth hormone release that more closely mimics natural GH secretion patterns. Researchers prefer the No DAC variant for protocols studying physiological GH pulse dynamics.
Expert Insight
“The No DAC variant preserves the natural pulsatile GH release pattern, making it the preferred research tool for scientists studying physiological GH dynamics. Its shorter half-life allows researchers to control timing precisely—critical for circadian and pulse-frequency research.”
Research Pairing Suggestions
This is the gold-standard GH-axis research pairing—Mod GRF (No DAC) provides pulsatile GHRH stimulation while Ipamorelin activates ghrelin receptors, creating synergistic dual-pathway GH release that mimics natural physiology.
Both are GHRH analogs with distinct pharmacokinetic profiles—researchers pair them to compare pulsatile (No DAC) vs. sustained (Tesamorelin) GH-axis activation in head-to-head or sequential protocol designs.
Research Highlights
Modified GRF 1-29 with ~30-minute half-life for pulsatile GH release
Mimics natural GH secretion patterns more closely than DAC variant
Preferred in research protocols studying GH pulse dynamics and circadian timing
This calculator is a math tool only. It does not provide medical advice. Vital Peptides Labs sells research peptides for laboratory and research use only. Users are strongly encouraged to read the linked research, consult qualified professionals, and draw their own conclusions before making any decisions.
Reconstitution Calculator— CJC-1295 (No DAC)
Research Literature — CJC-1295 (No DAC)
The following is a summary of published research literature. This information is provided for educational reference only and does not constitute medical advice or research amount guidance.
Research Amounts in Literature
In published studies, researchers have administered Modified GRF 1-29 (CJC-1295 No DAC) at doses of 100–300 µg per administration. The most commonly referenced research dose is 100 µg, often combined with a GHRP.
Frequency Protocols in Research
Published literature reports 1–3 times daily subcutaneous administration protocols, typically timed around sleep and post-exercise windows. Research protocols commonly span 4–12 weeks.
Reconstitution Concentrations in Research
Published research reports reconstitution of 10 mg vials in 2–3 mL bacteriostatic water, yielding concentrations of 3.3–5 mg/mL. Using 2 mL (5 mg/mL) is the most commonly referenced standard.
Typical Syringe Ranges in Research
At 5 mg/mL concentration, a 100 µg dose equals 2 units (0.02 mL). Typical research administration volumes range from 2–6 units (0.02–0.06 mL) on a standard research syringe.
CJC-1295 (No DAC)
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Sterile water with 0.9% benzyl alcohol for reconstitution
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ViewThis product is intended strictly for laboratory research and development purposes only. Not for human consumption, medical, veterinary, or household use. By purchasing this product, you confirm that you are at least 21 years of age and that the product will be used solely for legitimate research purposes.