Peptide Hubs

Mod GRF 5 mg

Product Details Peptide Hubs

Active Substance Mod GRF (1-29) CJC-1295 without DAC

Strength 5 mg per vial

Package 1 × 2 mL vial 5 mg labeled content

Form Lyophilized powder

Research Class GHRH analog Modified GHRH(1-29)

Primary Target GHRH receptor Pituitary somatotroph signaling

Research Profile Short-acting GH signaling Associated with pulsatile GH release

DAC Modification None Non-albumin-binding form

Out of stock

Mod GRF 5 mg (CJC-1295 without DAC) – Peptide Hubs

Mod GRF 1-29, commonly referred to as CJC-1295 without DAC, is a short-acting growth hormone-releasing hormone (GHRH) analog. It has been modified to enhance stability while avoiding long-term GH elevation, offering a pulsatile GH release pattern more in line with natural secretion. Peptide Hubs supplies Mod GRF in a 5 mg lyophilized vial for scientific research on recovery, GH dynamics, and anti-aging protocols.

Mechanism of Action

Mod GRF acts on the anterior pituitary by stimulating GHRH receptors, promoting a natural pulse of growth hormone. Unlike its long-acting DAC version, it mimics the body's endogenous GH rhythm and is often paired with GHRP compounds like GHRP-2 or Ipamorelin to amplify the GH surge. It avoids constant GH elevation, reducing desensitization risks. For more, see this NIH paper on GHRH analogs.

Research Applications

Growth hormone pulse stimulation studies
Recovery and injury repair models
Anti-aging and cellular rejuvenation research
GH axis modulation and endocrine function experiments

Mod GRF is often used in conjunction with GHRP-6 or GHRP-2 for synergistic GH release. It may also be stacked with GHK Basic for tissue recovery or AOD 9604 for metabolic studies.

Technical Details

Peptide Type

Modified GHRH Analogue

Peptide Sequence

Tyr-D-Ala-Asp-Ala-Ile-Phe-Thr-Gln-Ser-Tyr-Arg-Lys-Val-Leu-Ala-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Leu-Ser-Arg-NH₂

Peptide Length

29 Amino-Acid Residues

Structural Origin

Human GHRH(1-29) Analogue

Sequence Modifications

D-Ala² · Gln⁸ · Ala¹⁵ · Leu²⁷

Terminal Form

C-Terminal Amide (-NH₂)

Molecular Formula

C₁₅₂H₂₅₂N₄₄O₄₂

Molecular Weight

3367.9 g/mol

PubChem CID

91976842

Receptor Target

GHRH Receptor (GHRHR)

DAC Modification

None

Research Status

Experimental / Research Compound

Dosage & Usage Guidelines

Dosage: 100–200 mcg per injection, 2–3 times daily
Administration: Subcutaneous injection, often timed with GHRP administration
Cycle Duration: 4–12 weeks in GH restoration protocols

Stacking Recommendations

GHRP-2 – for amplified GH surge and pituitary stimulation
DSIP – for sleep-dependent GH optimization and recovery
GHK Basic – to support collagen synthesis and injury repair
Semaglutide – in metabolic modulation and fat-loss studies

Safety & Legal Status

Mod GRF is sold strictly for laboratory research use only and is not FDA-approved. It has shown excellent tolerability with no aromatization, hepatotoxicity, or suppression of endogenous hormones. For trial listings, visit ClinicalTrials.gov.

Shipping & Product Authenticity

USA Domestic

4–5 business days

International

13–15 business days

Order Processing

24–48 business hours

Tracking

Tracking number provided

Direct Supply & Discreet Delivery

This product is supplied through the official Peptide Hubs distribution chain and shipped in original manufacturer packaging. The outer shipping package remains discreet, with privacy-focused handling and no unnecessary external product details.

What to Expect

✔ Orders are processed after payment confirmation
✔ USA Domestic shipping is typically faster when local stock is selected
✔ International orders include tracking, though update frequency may vary by destination
✔ Multiple warehouses may result in separate shipments when applicable

Authenticity support: official Peptide Hubs presentation, batch-linked lab proof, and original packaging help reinforce product legitimacy and buyer confidence.

Verified Supply

For complete delivery details, tracking policy, and reshipment terms, please see our Shipping Info page.

Storage

Store the lyophilized powder at controlled room temperature (15–25°C) in a dry, dark place, away from direct light and moisture. The unopened vial should be kept in its original packaging to maintain stability.

After reconstitution, store the solution at 2–8°C and use within 14 days. Do not freeze. Discard any unused portion after the recommended storage period. Before use, inspect the solution and avoid use if it appears cloudy, discolored, or contains particulate matter, or if the vial or seal is compromised.

Keep out of reach of children. Follow proper handling and sterile injection practices during research use.

Proper storage conditions help maintain product stability and consistent performance across the product's shelf life.

Frequently Asked Questions

What is Mod GRF used for in research?

Mod GRF is studied for its role in stimulating growth hormone release, promoting recovery, and restoring natural GH rhythms in endocrine research models.

How is Mod GRF different from CJC-1295 with DAC?

Mod GRF is short-acting and mimics natural GH pulses, while CJC-1295 with DAC offers extended GH elevation. Mod GRF allows better physiological control.

Can Mod GRF be stacked with GHRPs?

Yes. Mod GRF is often stacked with GHRP-2, GHRP-6, or Ipamorelin to achieve synergistic GH release in experimental settings.

Is Mod GRF FDA-approved for human use?

No. Mod GRF is not FDA-approved and is strictly intended for research use only in preclinical studies and scientific models.

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Mod GRF 5 mg

Mod GRF 5 mg (CJC-1295 without DAC) – Peptide Hubs

Mechanism of Action

Research Applications

Technical Details

Dosage & Usage Guidelines

Stacking Recommendations

Safety & Legal Status

Shipping & Product Authenticity

What to Expect

Storage

Frequently Asked Questions

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