Peptide Profile
CJC-1295 DAC
CJC-1295 with DAC · CJC-1295-DAC · DAC:GRF · DAC-GRF · CJC 1295 DAC
CJC-1295 DAC (also written DAC-GRF) is a synthetic 30-amino-acid growth hormone-releasing hormone (GHRH) analog incorporating a Drug Affinity Complex (DAC) — a trans-4-aminomethylcyclohexane carboxylic acid group — that enables…
- Half-life
- 6–8 days
- Routes
- subcutaneous
Educational research information — not medical advice. Review primary sources and consult a qualified professional before any decision.
Educational research tools — not medical advice.
What CJC-1295 DAC is
About CJC-1295 DAC
CJC-1295 DAC is a GHRH analog carrying a Drug Affinity Complex (DAC) modification that binds covalently to circulating albumin, greatly extending its plasma half-life relative to unmodified or short-acting GHRH analogs. Through this albumin binding it acts as a long-lasting agonist at pituitary GHRH receptors, associated in research with sustained growth hormone and downstream IGF-1 elevation. This contrasts with the non-DAC form (Mod GRF 1-29), whose action is measured in minutes rather than days.
CJC-1295 DAC (also written DAC-GRF) is a synthetic 30-amino-acid growth hormone-releasing hormone (GHRH) analog incorporating a Drug Affinity Complex (DAC) — a trans-4-aminomethylcyclohexane carboxylic acid group — that enables covalent binding to circulating albumin. This albumin binding is the defining feature of the DAC variant: it extends the plasma half-life from the minutes characteristic of native GHRH and short-acting analogs to approximately 6–8 days, and is the pharmacological basis for the less-frequent administration schedules described in the research literature. Because of this sustained exposure, CJC-1295 DAC acts as a prolonged GHRH-receptor agonist at pituitary somatotrophs rather than producing the brief, pulsatile stimulation of its non-DAC counterpart, and has been studied in the context of growth hormone axis support. The distinction between the DAC and non-DAC forms is central. The non-DAC form — commonly called Mod GRF 1-29 or CJC-1295 without DAC — lacks the albumin-binding complex and has an effective half-life measured in minutes, producing short, discrete GH pulses. The DAC form's multi-day half-life instead produces a prolonged elevation of GHRH-receptor signaling. Researchers describe these as different pharmacokinetic tools rather than interchangeable versions of one compound, which is why PeptideBase catalogs them as separate records. The indexed human evidence base for CJC-1295 DAC is limited. A single Phase 1 dose-escalation, randomized controlled trial in healthy adults, published in the Journal of Clinical Endocrinology & Metabolism (2006), reported dose-dependent and sustained increases in mean GH and IGF-1 concentrations after single-dose administration; the remaining indexed literature consists largely of anti-doping detection methods. CJC-1295 DAC has no FDA approval and no approved therapeutic indication in any jurisdiction — it is available only as a research compound, and no Phase 2 or Phase 3 efficacy data exists for any specific application. Content here is educational and for research context only; it is not medical, dosing, or treatment guidance.
CJC-1295 DAC Benefits & Research Areas
Research Signals
Commonly researched in the context of
Population research notes
These signals reflect research interest areas, not treatment indications.
What the evidence says about CJC-1295 DAC
Research Evidence
Score: 0.46
Regulatory Status
- Availability Status
- Research Only
- FDA Status
- Not Evaluated
Long-acting GHRH analog with a Drug Affinity Complex (DAC) modification. No FDA approval. Not on the FDA 503A bulks list. WADA-prohibited as a growth hormone releasing factor. Sold as a research chemical only.
Regulatory status reflects publicly available information and may change. This is not legal or medical advice.
Research Sources
1 source cited · 1 strong
1 RCT
Effects of a single injection of CJC-1295, a long-acting growth hormone-releasing hormone analog, in healthy adults
Journal of Clinical Endocrinology and Metabolism · 2006
Research in two randomized controlled trials found that a single injection of CJC-1295 produced 2- to 10-fold increases in serum growth hormone and 1.5- to 3-fold increases in IGF-1 concentrations sustained for 6 or more days, with an acceptable safety and tolerability profile in healthy adults.
CJC-1295 DAC Side Effects & Safety Considerations
Research-use compound. The considerations below are reported from preclinical / non-clinical sources; evidence strength varies — see the Evidence section.
Reported contraindications & considerations
Common monitoring markers in research protocols
Research protocols routinely measure IGF-1 to track GH axis activity before and during use. Fasting glucose and insulin are monitored because GH elevation can reduce insulin sensitivity over time.
Consult a qualified healthcare professional before making any health decisions. This information is educational only and does not constitute medical advice.
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VSCJC-1295 DAC
Frequently Asked Questions — CJC-1295 DAC
CJC-1295 DAC (also written DAC-GRF) is a synthetic 30-amino-acid growth hormone-releasing hormone (GHRH) analog incorporating a Drug Affinity Complex (DAC) — a trans-4-aminomethylcyclohexane carboxylic acid group — that enables covalent binding to circulating albumin. This albumin binding is the defining feature of the DAC variant: it extends the plasma half-life from the minutes characteristic of native GHRH and short-acting analogs to approximately 6–8 days, and is the pharmacological basis for the less-frequent administration schedules described in the research literature.
GH and IGF-1 elevation studied in a single-dose human PK trial, sustained GHRH-receptor agonism via albumin binding, extended plasma half-life relative to short-acting GHRH analogs, body-composition and GH-axis research contexts, subcutaneous administration in published research.
Research on CJC-1295 DAC primarily documents effects related to GH and IGF-1 elevation studied in a single-dose human PK trial and sustained GHRH-receptor agonism via albumin binding and extended plasma half-life relative to short-acting GHRH analogs and body-composition and GH-axis research contexts and subcutaneous administration in published research. These are areas covered in preclinical and clinical literature — individual response varies and effects depend on context of use.
Reported contraindications and considerations for CJC-1295 DAC include cardiovascular condition. This is educational information only — consult a qualified healthcare professional before use.
For CJC-1295 DAC, its FDA status is not evaluated by the FDA, and it is designated for research use only. Regulatory status reflects publicly available information and may change. This is not legal or medical advice.
Across 25 research vendors tracked on PeptideBase, CJC-1295 DAC has a median price of about $11.99 per mg, typically ranging $8.40–$15.80 per mg. This reflects research-use vendor pricing, not clinical or prescription costs.
Research in two randomized controlled trials found that a single injection of CJC-1295 produced 2- to 10-fold increases in serum growth hormone and 1.5- to 3-fold increases in IGF-1 concentrations sustained for 6 or more days, with an acceptable safety and tolerability profile in healthy adults.
How to get CJC-1295 DAC
Market Pricing
25 vendorsPrice per mg varies by quantity, vendor type, and formulation. Research use only.
Data verified July 2026 · CJC-1295 DAC price intelligence
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Cite this page
Data last updated July 3, 2026
Free to reference and republish with attribution to PeptideBase. Choose a format:
PeptideBase. (2026). CJC-1295 DAC — Per-mg Price Benchmark. Retrieved July 5, 2026, from https://peptidebase.io/peptides/cjc-1295-dac