CJC-1295 vs MGF (Mechano Growth Factor)
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
CJC-1295
CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) that stimulates the pituitary gland to produce more growth hormone.
Full details →MGF (Mechano Growth Factor)
MGF (Mechano Growth Factor) is a splice variant of IGF-1 that is produced locally in muscle tissue in response to mechanical stress. The non-PEGylated form has a very short half-life.
Full details →Side-by-Side Comparison
| Aspect | CJC-1295 | MGF (Mechano Growth Factor) |
|---|---|---|
| Dose Range | 1 mg–2 mg | 400 mcg–1.2 mg |
| Frequency | Less than daily | Less than daily |
| Cycle Length | 8–12 weeks | 4–6 weeks |
| Route | subcutaneous | intramuscular |
| Mechanism | CJC-1295 binds to GHRH receptors in the pituitary, triggering increased production and release of growth hormone. The DAC (Drug Affinity Complex) version extends half-life significantly. | Activates muscle satellite cells (stem cells) and promotes their proliferation without differentiation, priming them for fusion with existing muscle fibers during repair and growth. |
| Typical Dosage | CJC-1295 DAC: 1-2mg weekly. CJC-1295 no DAC (Mod GRF 1-29): 100-300mcg 2-3 times daily. | Due to extremely short half-life (minutes), typical protocols use 100-200mcg injected directly into target muscles immediately post-workout. |
| Administration | Subcutaneous injection, often combined with a GHRP like Ipamorelin for synergistic effects. Best administered before sleep or fasted. | Intramuscular injection into trained muscles within minutes of workout completion. Must be used immediately after reconstitution due to instability. |
| Side Effects | Water retention, tingling in extremities, potential increase in cortisol and prolactin levels. | Injection site soreness, potential hypoglycemia, localized swelling. Short half-life limits systemic effects. |
| Best For |
What They Have in Common
CJC-1295, MGF (Mechano Growth Factor) are both commonly used for:
Key Differences
Unique to CJC-1295:
Unique to MGF (Mechano Growth Factor):
Which Has Stronger Evidence?
- Muscle Growth: CJC-1295 has stronger research support.
| Goal | CJC-1295 | MGF (Mechano Growth Factor) |
|---|---|---|
| Muscle Growth | high | medium |
Key Studies
CJC-1295
- A method for confirming CJC-1295 abuse in equine plasma samples by LC-MS/MS.
Drug testing and analysis, 2019
- An immuno polymerase chain reaction screen for the detection of CJC-1295 and other growth-hormone-releasing hormone analogs in equine plasma.
Drug testing and analysis, 2019
- Netnography of Female Use of the Synthetic Growth Hormone CJC-1295: Pulses and Potions.
Substance use & misuse, 2016
MGF (Mechano Growth Factor)
- The role of mechano growth factor in chondrocytes and cartilage defects: a concise review.
Acta biochimica et biophysica Sinica, 2023
- Pretreatment with mechano growth factor E peptide attenuates osteoarthritis through improving cell proliferation and extracellular matrix synthesis in chondrocytes under severe hypoxia.
International immunopharmacology, 2021
- Mechano growth factor interacts with nucleolin to protect against cisplatin-induced neurotoxicity.
Experimental neurology, 2020
Ready to Learn More?
Looking for trusted sources?