1
Modified GHRH analogue with improved enzymatic stability and a half-life of approximately 30 minutes vs seconds for native GHRH.
View on PubMed →
MOD GRF (1-29) EU
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MOD GRF (1-29) is a modified GHRH analogue with four amino acid substitutions for improved enzymatic stability. It produces pulsatile GH release mimicking natural secretion patterns. Frequently paired with Ipamorelin for synergistic effects through dual receptor pathway activation.
Every batch is independently tested by a 3rd party laboratory. Certificate of Analysis available below.
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Every batch is tested by an independent third-party laboratory with no commercial relationship to Camo Chem. We never self-certify. The full Certificate of Analysis is published on this page and verifiable directly with the testing lab.
Worldwide shipping. UK orders typically delivered in 1-3 working days. EU and international orders 3-7 working days. Tracked and signed-for delivery. Free shipping over £65 (UK) / €110 (EU) / $110 (US).
Store lyophilised powder in a cool, dry place. After reconstitution, refrigerate at 2-8°C.
Don't forget
Bacteriostatic water
Required for reconstituting lyophilised peptides. European Warehouse.
Reconstitution
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Calculate the exact volume of bacteriostatic water for your target dose.
Worldwide ShippingUK · EU · USA · Asia
3rd Party TestedIndependent lab CoA
≥98% HPLC PurityVerified per batch
Safe DeliveryDiscreet packaging
Research Overview
About this compound
What does the research say?
MOD GRF (1-29), also known as CJC-1295 without DAC, is a modified version of the first 29 amino acids of growth hormone-releasing hormone (GHRH). Four amino acid substitutions (positions 2, 8, 15, and 27) improve its resistance to enzymatic degradation, extending its half-life to approximately 30 minutes compared to seconds for native GHRH.
MOD GRF stimulates growth hormone release through the GHRH receptor on pituitary somatotrophs. Unlike CJC-1295 DAC, it does not contain the Drug Affinity Complex, resulting in shorter but more pulsatile GH release. This makes it the preferred choice for researchers studying natural GH pulse patterns. It is frequently combined with Ipamorelin: MOD GRF amplifies the GH pulse while Ipamorelin triggers it through a separate receptor pathway.
These are not marketing claims. These are peer-reviewed, published results. You can verify every reference below.
Why does quality matter with MOD GRF?
The four amino acid substitutions that define MOD GRF are critical for its improved stability. Products with incorrect substitutions will degrade rapidly and not produce the expected GH response.
At Camo Chem, every batch is tested by an independent 3rd party laboratory. We publish the full Certificate of Analysis for every batch, and you can verify the results directly with the lab. We do not self-certify. Ever.
Ask your current supplier: who tests their products?
Technical Data
Compound specifications
| Common Names | MOD GRF (1-29), CJC-1295 without DAC, Modified GRF (1-29) |
| CAS Number | 446036-97-1 |
| Molecular Formula | C₁₅₂H₂₅₂N₄₄O₄₂ |
| Molecular Weight | 3,367.9 g/mol |
| Amino Acids | 29 |
| Classification | Modified GHRH analogue |
| Purity | ≥98% (HPLC verified) |
| Content per Vial | 3 mg |
| Physical Form | Lyophilised (freeze-dried) white powder |
| Solubility | Soluble in water and bacteriostatic water |
| Storage | Powder: cool, dry place. After reconstitution: 2-8°C. |
Peer-reviewed Studies
Published research on MOD GRF (1-29)
2
Stimulates GH release through the GHRH receptor with a pulsatile release profile mimicking natural GH secretion patterns.
View on PubMed →3
Synergistic GH release when combined with ghrelin-mimetic secretagogues acting through separate receptor pathways.
View on PubMed →
Customer Reviews
What researchers are saying
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FAQ
Frequently asked questions
MOD GRF (1-29) is a modified GHRH analogue with CAS number 446036-97-1. Also known as CJC-1295 without DAC, it contains four amino acid substitutions that improve stability. It is sold exclusively as a research compound.
MOD GRF lacks the Drug Affinity Complex (DAC) present in CJC-1295 DAC. This means a shorter half-life (~30 minutes vs 6-8 days) but a more pulsatile GH release pattern. CJC-1295 DAC produces sustained GH elevation; MOD GRF produces acute GH pulses.
Every batch meets a minimum of 98% purity as verified by HPLC. Testing is performed by an independent 3rd party laboratory.
Yes. MOD GRF is supplied as a lyophilised powder and must be reconstituted with bacteriostatic water before use.
In lyophilised form, store in a cool, dry place. After reconstitution, refrigerate at 2-8°C.
