← Encyclopedia Growth Hormone Secretagogues & Analogues

CJC-1295 (No DAC)

🔹 What is CJC-1295 (No DAC)?

Class: Synthetic peptide—growth hormone-releasing hormone (GHRH) analogue without Drug Affinity Complex. Also commonly sold and referred to as Mod-GRF (1-29) — same compound, different name, distinct from CJC-1295 with DAC (covered separately on this site). Mechanism: Stimulates the pituitary gland to release endogenous growth hormone (GH) by binding to GHRH receptors. Lacks DAC, so it has a shorter half-life (~30–40 minutes), requiring more frequent dosing to maintain GH pulses. Enhances IGF-1 production indirectly, supporting anabolic, regenerative, and metabolic pathways. Primary focus: Increase GH and IGF-1 levels, support muscle growth, fat metabolism, recovery, tissue repair, anti-aging effects, and anabolic resilience.


🔹 Oral Dosage (least common) Range studied/used in research: Oral administration is ineffective due to peptide degradation in the gastrointestinal tract. Typical protocol: Oral forms are not used; subcutaneous injection is required for reliable absorption. Notes: Without DAC, frequent injections are necessary to sustain GH pulses.


🔹 Injectable / Subcutaneous Dosage (most common) Range: Research and anecdotal reports use 100–200 µg per injection, 2–3 times per day to mimic natural GH pulsatility. Frequency: Typically 2–3 times daily due to short half-life; may be timed around workouts or sleep to optimize GH release. Rationale: Shorter half-life allows more natural GH pulse replication, which may enhance IGF-1 feedback regulation and reduce desensitization risk.


🔹 Cycle Length Common cycle length: 8–12 weeks is standard for performance, recovery, or anti-aging purposes. Off-cycle: 2–4 week breaks may be used to assess pituitary responsiveness or IGF-1 levels. Note: Frequent daily dosing is key; missing doses can significantly reduce efficacy.


🔹 Optimal Dosing Window Injectable / Subcutaneous: Morning, pre-workout, and/or evening dosing are common to mimic natural GH secretion patterns. Avoid random midday dosing unless splitting doses for pulse replication.


Educational Integration Example (injectable) Example protocol: 150 µg subcutaneous injection 2–3 times daily (e.g., 8 AM, 12 PM, 6 PM) for 10 weeks. Adjust based on IGF-1 monitoring and clinical goals. Pair with: Resistance training, adequate protein, quality sleep, and recovery-focused supplementation.


🔹 Stacking Strategy (Educational) Since CJC-1295 (No DAC) targets GH/IGF-1 pathways with shorter pulses, stacks can focus on amplifying natural GH release and supporting tissue repair: 🔸 Anabolic & Fat Loss Support

  • GHRPs (Ipamorelin, GHRP-2, GHRP-6): Synergize with CJC-1295 to amplify GH pulse amplitude.
  • AOD-9604: Supports fat metabolism and lipolytic pathways.

🔸 Recovery & Regenerative Health

  • BPC-157 or TB-500: Supports connective tissue, tendons, ligaments, and general recovery.
  • Collagen peptides: Enhance musculoskeletal repair and joint resilience.

🔸 Longevity / Metabolic Optimization

  • NAD⁺ precursors (NMN/NR): Supports mitochondrial energy for GH-mediated regenerative benefits.
  • Sleep hygiene and lifestyle: Critical for maximizing GH pulse effectiveness and tissue recovery.

Studied in Humans? No

FDA Approved? No

Allowed for 503a Compounding Pharmacy? No

Disclaimer: Do not rely on any dosing information provided, this is for educational and research only. Always double and triple check alternative references for education. Please consult with healthcare provider for your specific dosing and protocol if applicable.