CJC-1295 - Research Profile & Reviews

Research Overview

CJC-1295 is a synthetic peptide analog of growth hormone-releasing hormone (GHRH) consisting of 30 amino acids. It was developed by ConjuChem Biotechnologies and features a Drug Affinity Complex (DAC) modification that allows it to bind to serum albumin, dramatically extending its half-life to approximately 6-8 days compared to minutes for native GHRH.

The peptide works by binding to GHRH receptors on the anterior pituitary gland, stimulating the synthesis and secretion of growth hormone in a pulsatile, physiological manner. Unlike exogenous GH administration, CJC-1295 preserves the natural feedback mechanisms of the GH axis, resulting in more balanced hormone elevation.

Clinical studies have demonstrated that CJC-1295 can increase mean GH levels by 2-10 fold and IGF-1 levels by 1.5-3 fold for up to 6 days following a single injection. Research has explored its potential applications in growth hormone deficiency, muscle wasting conditions, and age-related GH decline. The sustained elevation pattern distinguishes it from shorter-acting secretagogues.

Documented Research Effects

Muscle Growth Fat Loss Recovery Anti-Aging Sleep Quality

Dosage & Protocol

Typical Dose Range

1000 – 2000

mcg per dose

Frequency

2-3x weekly

Cycle Length

8-12 weeks

Common Vial Sizes

2 5

Calculate exact draw volumes and reconstitution steps.

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Dosage information is for research reference only. Always follow established research protocols. Not medical advice.

Storage & Handling

Lyophilized Powder

Temperature -20°C

Shelf Life 2+ years

Reconstituted Solution

Temperature 2-8°C

Shelf Life 4-6 weeks

Frequently Asked Questions

CJC-1295 with DAC (Drug Affinity Complex) has an extended half-life of 6-8 days, allowing for less frequent dosing (1-2x weekly). CJC-1295 without DAC (also known as Modified GRF 1-29) has a shorter half-life of approximately 30 minutes and is typically dosed 2-3 times daily. The DAC version produces a steadier GH elevation, while the non-DAC version creates more pulsatile GH release, which some consider more physiologically natural.

Yes, CJC-1295 (Mod GRF 1-29) and Ipamorelin are one of the most popular peptide stacks for growth hormone optimization. CJC-1295 acts as a GHRH analog while Ipamorelin is a ghrelin mimetic, and together they create a synergistic amplification of GH release that exceeds what either peptide achieves alone. A typical combined dose is 100 mcg of each, taken 2-3 times daily.

For CJC-1295 without DAC, the most effective timing is before bed (to amplify the natural GH pulse during sleep), upon waking, and optionally post-workout. It should be taken on an empty stomach, as elevated insulin and blood sugar can blunt GH release. Wait at least 20-30 minutes after injection before eating.

Users typically report improved sleep quality within the first 1-2 weeks. Over 4-8 weeks, common benefits include enhanced recovery from exercise, improved skin quality, increased fat metabolism, and better body composition. Full effects on lean muscle mass and fat loss are generally observed over 3-6 months of consistent use.

Unreconstituted CJC-1295 should be stored at -20 degrees Celsius (freezer) for long-term storage, or at 2-8 degrees Celsius (refrigerator) for short-term storage. Once reconstituted with bacteriostatic water, it must be refrigerated at 2-8 degrees Celsius and used within 4-6 weeks. Avoid repeated freeze-thaw cycles, light exposure, and excessive heat.

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