Mod GRF 1-29 & GHRP-2 Blend (10MG)

What Is the Mod GRF 1-29 & GHRP-2 Blend and Why Buy It for Research?

Buy Mod GRF 1-29 & GHRP-2 Blend in Switzerland for research into growth hormone axis signaling, synergistic GH release, and metabolic regulation. Specifically, this 10mg research formulation combines two complementary growth hormone secretagogues in a single pre-mixed lyophilized vial: Mod GRF 1-29 (CJC-1295 without DAC, 5mg) and GHRP-2 (5mg). This blend pairs a growth hormone-releasing hormone (GHRH) analog with a potent growth hormone secretagogue (GHS) to probe convergent pathways in the GH-IGF-1 axis.

Mod GRF 1-29 (without DAC, also known as CJC-1295 without DAC or Modified GRF 1-29) is a synthetic 29-amino acid peptide analog of GHRH that activates the GHRH receptor on anterior pituitary somatotrophs, driving cAMP/PKA-mediated GH synthesis and secretion[reference:0]. GHRP-2 (Pralmorelin, KP-102) is a synthetic hexapeptide that engages the GHS-R1a receptor, mobilizing intracellular calcium to trigger GH granule release[reference:1]. When combined, these two peptides produce synergistic GH release—significantly higher than either compound alone. Furthermore, Core Peptides supplies this blend as a lyophilized powder in a 10mg format exclusively for laboratory use. Therefore, researchers seeking to source this combination for their work will find it readily available when they buy Mod GRF 1-29 & GHRP-2 Blend in Switzerland.

Mod GRF 1-29 & GHRP-2 Blend Research Overview: Buy Mod GRF 1-29 & GHRP-2 Blend in Switzerland for GH Axis Studies

Centrally, research into the Mod GRF 1-29 and GHRP-2 blend has focused on the complementary and synergistic mechanisms of its two components. The foundational observation that GHRH + GHRP produces synergistic GH release was established in human subjects, demonstrating that co-administration of GHRH and GHRP produced GH peaks significantly higher than either peptide alone.

Mod GRF 1-29 functions as a GHRH analog that binds to the GHRH receptor (GHRH-R), a G-protein coupled receptor (GPCR) on pituitary somatotrophs[reference:2]. The peptide incorporates four strategic amino acid substitutions at positions 2 (Ala to D-Ala), 8 (Asn to Gln), 15 (Gly to Ala), and 27 (Met to Leu), which confer resistance to DPP-IV cleavage and other degradation pathways, extending the biological half-life from less than 7 minutes (native GHRH) to approximately 30 minutes[reference:3]. This binding activates a downstream signaling cascade that results in GH synthesis and release.

GHRP-2 (Pralmorelin, KP-102) is a synthetic hexapeptide with the sequence D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH₂[reference:4]. It acts directly on specific pituitary receptors and indirectly on the hypothalamus, stimulating endogenous GHRH release from arcuate nucleus neurons and functionally suppressing somatostatin release from periventricular neurons[reference:5]. This dual hypothalamic action creates a permissive environment for maximal GH pulse amplitude. GHRP-2 has a molecular weight of 817.94 g/mol, the molecular formula C₄₅H₅₅N₉O₆, and a CAS number of 158861-67-7[reference:6].

When combined, Mod GRF 1-29 sustains physiologic pulsatile GH secretion while GHRP-2 amplifies output through hypothalamic effects and suppression of somatostatin. The dual-receptor activation model produces GH output that exceeds the additive sum of either peptide alone. Accordingly, researchers who buy Mod GRF 1-29 & GHRP-2 Blend in Switzerland from Core Peptides can support their investigations into GH axis signaling, synergistic peptide interactions, and metabolic regulation.

How Does the Mod GRF 1-29 & GHRP-2 Blend Work in Research?

Mechanistically, the Mod GRF 1-29 and GHRP-2 blend operates through two complementary signaling pathways that converge on GH release from pituitary somatotrophs.

GHRH Receptor Pathway (Mod GRF 1-29)

Mod GRF 1-29 activates the GHRH receptor (GHRH-R) on anterior pituitary somatotrophs, driving cAMP/PKA-mediated GH synthesis and secretion[reference:7]. It functions as a stable and active hGRF1-29 analog with a half-life of approximately 30 minutes[reference:8]. The amino acid substitutions at positions 2, 8, 15, and 27 confer resistance to DPP-IV cleavage, extending the effective half-life compared to native GHRH[reference:9]. This binding initiates a downstream signaling cascade that results in GH synthesis and release, with Mod GRF 1-29 showing a 4-fold increase in GH area under the curve over a 2-hour period compared with hGRF1-29.

GHS-R1a Pathway (GHRP-2)

GHRP-2 binds the growth hormone secretagogue receptor 1a (GHS-R1a), also known as the ghrelin receptor, through Gq/11-coupled signaling, mobilizing intracellular calcium to trigger GH granule release[reference:10]. GHRP-2 is a potent agonist of GHS-R1a and has been shown to have GH-releasing activity greater than that of GHRH both in animals and in man. Beyond somatotroph GH release, GHRP-2 activates hypothalamic circuits that suppress somatostatin release and stimulate endogenous GHRH secretion, creating a feed-forward loop that further amplifies GH output[reference:11].

Synergistic Effects

The dual combination produces synergistic (not merely additive) GH release. Mod GRF 1-29 sustains physiologic pulsatile GH secretion while GHRP-2 amplifies output through hypothalamic effects and suppression of somatostatin. Combining a GHS (GHRP-2) with a GHRH analog (Mod GRF 1-29) produces synergistic GH release significantly higher than either compound alone. Studies suggest that this blend may offer new insights into how fluctuations in growth hormone levels might impact overall energy balance and metabolic function.

Why Is the Mod GRF 1-29 & GHRP-2 Blend Studied in Switzerland?

Primarily, researchers study this blend because it represents a well-characterized dual combination of complementary GH secretagogues that enables investigation of synergistic GH release, metabolic regulation, and receptor pharmacology. In fact, this pre-mixed blend offers a practical way to study convergent GH axis signaling without the need to source and reconstitute each compound separately.

Research has demonstrated the blend’s relevance across multiple domains. GH pulse amplitude is a key determinant of recovery-relevant downstream effects including IGF-1 elevation, protein synthesis stimulation, lipolysis, and collagen synthesis. Research in GH-deficient models demonstrates that pulsatile GH administration is more effective than continuous infusion for promoting lean body mass and reducing adiposity, supporting the value of high-amplitude pulse protocols. Furthermore, GHRP-2’s broader hypothalamic effects—including somatostatin suppression and endogenous GHRH stimulation—provide additional mechanisms for amplifying GH output. Ultimately, researchers who buy Mod GRF 1-29 & GHRP-2 Blend in Switzerland gain access to a comprehensive research tool for investigating GH axis signaling, metabolic regulation, and receptor pharmacology.

Mod GRF 1-29 & GHRP-2 Blend Research Areas in Laboratory Studies

Research Area	Focus	Key Components
GH Axis Signaling	Dual-pathway activation, GHRH/GHS receptor crosstalk, pulsatile secretion	Both (complementary pathways)
Metabolic Regulation	IGF-1 elevation, lipolysis, protein synthesis, metabolic homeostasis	Both (GH-dependent effects)
Receptor Pharmacology	GHRH-R, GHS-R1a binding, receptor binding kinetics, dual-receptor activation	Both (distinct targets)
Hypothalamic-Pituitary Axis	Somatostatin suppression, endogenous GHRH release, feed-forward amplification	GHRP-2
Pulsatile GH Secretion	Physiologic GH patterning, amplitude modulation, pulse dynamics	Mod GRF 1-29
Energy Balance Research	Metabolic function, energy homeostasis, growth hormone fluctuations	Both

Mod GRF 1-29 & GHRP-2 Blend Compared With Related Research Formulations

Formulation	Components	Research Focus	Key Difference
Mod GRF 1-29 + GHRP-2 Blend	Mod GRF 1-29 + GHRP-2 (1:1)	GH axis, synergistic release, metabolic regulation	Classic GH stack; potent GH release via GHRP-2
Mod GRF 1-29 + Ipamorelin Blend	Mod GRF 1-29 + Ipamorelin	GH release, metabolic regulation	Weaker GH pulse; minimal cortisol/prolactin spillover
Mod GRF 1-29 + Hexarelin Blend	Mod GRF 1-29 + Hexarelin	GH axis, cardioprotection	Hexarelin adds CD36 cardioprotection
Mod GRF 1-29 + Ipamorelin + GHRP-2 Blend	Mod GRF 1-29 + Ipamorelin + GHRP-2 (1:1:1)	Triple-pathway GH axis, receptor pharmacology	Triple blend; dual GHS-R1a agonism

Comparatively, the Mod GRF 1-29 and GHRP-2 blend differs from other GHRH/GHS combinations in its potency and research applications. On the one hand, GHRP-2 is one of the most potent GHRPs, generating robust GH output alongside measurable increases in ACTH, cortisol, and prolactin[reference:12]. On the other hand, the Mod GRF 1-29 and Ipamorelin blend provides selective GH release with minimal cortisol elevation. In contrast, the Mod GRF 1-29 and Hexarelin blend adds CD36-mediated cardioprotection, while the triple blend (Mod GRF 1-29 + Ipamorelin + GHRP-2) adds a second GHS-R1a agonist for more complete receptor activation.

Research Applications for the Mod GRF 1-29 & GHRP-2 Blend in Switzerland

Scientists have investigated this peptide blend across several research domains:

• GH Axis Signaling Research: Researchers use this blend to study dual-pathway GH activation, GHRH/GHS receptor crosstalk, and pulsatile GH secretion dynamics.
• Metabolic Regulation Studies: The blend is employed to investigate IGF-1 elevation, lipolysis, protein synthesis, and metabolic homeostasis pathways.
• Receptor Pharmacology: The blend serves as a tool for studying GHRH-R and GHS-R1a binding, receptor binding kinetics, and dual-receptor activation.
• Hypothalamic-Pituitary Axis Research: GHRP-2’s hypothalamic effects—somatostatin suppression and endogenous GHRH stimulation—are studied in neuroendocrine models.
• Energy Balance Studies: Research has examined the blend’s effects on metabolic function and energy homeostasis.
• Pulsatile GH Secretion: Mod GRF 1-29’s pulsatile GH patterning is studied in models of physiologic GH secretion.

Evidently, researchers who buy Mod GRF 1-29 & GHRP-2 Blend in Switzerland gain a valuable addition to any laboratory toolkit focused on GH axis signaling, metabolic research, and receptor pharmacology.

Mod GRF 1-29 & GHRP-2 Blend Product Specifications

Specification	Details
Product Name	Mod GRF 1-29 & GHRP-2 Blend
Alternative Names	CJC-1295 without DAC + GHRP-2, Modified GRF 1-29 + GHRP-2, GHRH/GHS blend
Total Content	10mg
Composition	Mod GRF 1-29 (CJC-1295 without DAC) 5mg + GHRP-2 5mg (1:1 ratio)
Form	Lyophilized powder
Purity	Not verified
Mod GRF 1-29 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 (29 amino acids)[reference:13]
Mod GRF 1-29 Molecular Weight	3,367.9 Da[reference:14]
Mod GRF 1-29 Molecular Formula	C₁₅₂H₂₅₂N₄₄O₄₂[reference:15]
Mod GRF 1-29 Half-Life	Approximately 30 minutes[reference:16]
GHRP-2 Sequence	D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH₂[reference:17]
GHRP-2 Molecular Weight	817.94 g/mol[reference:18]
GHRP-2 Molecular Formula	C₄₅H₅₅N₉O₆[reference:19]
GHRP-2 CAS Number	158861-67-7[reference:20]
Research Category	Growth Hormone Peptides / Muscle & Performance
Research Use	Laboratory research use only
CoA	Available upon request (not verified)
Storage	Lyophilized powder should be stored desiccated at -20°C or below, protected from light
Solubility	Soluble in water and bacteriostatic water; reconstitute slowly

How to Evaluate the Mod GRF 1-29 & GHRP-2 Blend Quality for Research

When sourcing this peptide blend for laboratory research, researchers should consider several quality indicators:

• Identity Confirmation: Analytical techniques such as mass spectrometry should confirm the identity and molecular weight of each component peptide.
• Purity Assessment: High-performance liquid chromatography (HPLC) should verify purity of each peptide, with ≥98% considered standard for research-grade material.
• Batch Traceability: Lot numbers and batch information enable researchers to track specific production runs.
• Certificate of Analysis: A CoA should accompany the product, detailing analytical testing results for each component.
• Labeling Accuracy: Proper labeling should clearly indicate the product name, composition (5mg Mod GRF 1-29 + 5mg GHRP-2), total content, and storage recommendations.
• Storage Conditions: Appropriate storage at -20°C or below in desiccated, dark conditions helps maintain peptide stability.

Understanding the Certificate of Analysis

Typically, a Certificate of Analysis (CoA) accompanies research peptide blends and provides information about the specific batch’s analytical testing. For example, a CoA may include product identity confirmation for each component, purity percentages as determined by HPLC, batch or lot number for traceability, analytical methods used (e.g., mass spectrometry, HPLC), and a physical description of the product.

Nevertheless, it is important to note that a CoA does not establish safety, efficacy, therapeutic effectiveness, or suitability for human use. Instead, it serves as a quality control document that helps researchers verify the identity and purity of the peptides they are using in their laboratory investigations.

Storage and Stability of the Mod GRF 1-29 & GHRP-2 Blend

Core Peptides supplies this blend as a lyophilized (freeze-dried) powder. To maintain stability and integrity:

• Store the lyophilized powder desiccated at -20°C or below for long-term storage
• Store at 4°C for short-term storage if frequent access is required
• Avoid repeated freeze-thaw cycles
• Reconstitute only immediately before use with appropriate sterile solvents (e.g., bacteriostatic water or sterile water)
• Inject solvent slowly against the inner wall of the vial rather than directly onto the powder; do not shake
• Gently roll the vial in a circular motion to dissolve
• Once reconstituted, refrigerate at 2°C to 8°C and utilize promptly
• Protect from light and moisture

Frequently Asked Questions About Buying the Mod GRF 1-29 & GHRP-2 Blend in Switzerland

What is the Mod GRF 1-29 & GHRP-2 Blend?

Specifically, this 10mg blend combines Mod GRF 1-29 (CJC-1295 without DAC, 5mg) and GHRP-2 (5mg) in a 1:1 ratio. It pairs a GHRH analog with a growth hormone secretagogue for synergistic GH release research.

What is the blend researched for?

Primarily, researchers study this blend for its synergistic GH release, metabolic regulation, and receptor pharmacology. It is most often discussed for GH axis signaling and metabolic studies.

How does the blend work?

Mechanistically, Mod GRF 1-29 activates the GHRH receptor on pituitary somatotrophs, driving GH synthesis, while GHRP-2 engages GHS-R1a, triggering GH release and suppressing somatostatin. The combination produces synergistic GH output through convergent but mechanistically independent pathways.

What is the composition of the blend?

The blend contains Mod GRF 1-29 (CJC-1295 without DAC) 5mg and GHRP-2 5mg for a total of 10mg.

What is the amino acid sequence of Mod GRF 1-29?

Mod GRF 1-29 is a 29-amino acid peptide: 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[reference:21].

What is GHRP-2?

GHRP-2 (Pralmorelin, KP-102) is a synthetic hexapeptide growth hormone secretagogue with the sequence D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH₂[reference:22].

How does GHRP-2 differ from Ipamorelin?

GHRP-2 generates robust GH output alongside measurable increases in ACTH, cortisol, and prolactin, while Ipamorelin produces highly selective GH release with negligible cortisol or prolactin elevation[reference:23].

What evidence exists for the blend?

The synergistic effect of combining GHRH analogs with GHSs is well-established in the literature. Mod GRF 1-29 + GHRP-2 is the most researched and popular GHRH/GHS stack.

Is the blend approved as a medicine?

No. Regulatory authorities have not approved the blend as a medicine, pharmaceutical, or therapeutic agent. It is a research tool for laboratory use only.

Is the blend intended for human use?

No. The blend is intended for laboratory research use only and is not for human consumption, injection, or therapeutic application.

Where can I buy the Mod GRF 1-29 & GHRP-2 Blend in Switzerland?

You can buy the Mod GRF 1-29 & GHRP-2 Blend in Switzerland from Core Peptides, a trusted research peptide supplier serving the Swiss scientific community.

How should researchers evaluate the quality of this blend?

Researchers should look for identity confirmation via mass spectrometry for each component, purity data from HPLC, batch traceability, and a Certificate of Analysis.

Related Research Compounds

Researchers interested in the Mod GRF 1-29 & GHRP-2 Blend may also find the following related compounds relevant to their work:

• Mod GRF 1-29 (CJC-1295 without DAC) — Individual GHRH analog researched for GH synthesis and pulsatile secretion.
• GHRP-2 — Individual GHRP researched for robust GH release and hypothalamic effects.
• Mod GRF 1-29 & Ipamorelin Blend — Alternative GHRH/GHS blend with selective GH release and minimal cortisol elevation.
• Ipamorelin — A GHRP researched for selective GH release with minimal side effects.

Explore Growth Hormone Peptides

The Mod GRF 1-29 & GHRP-2 Blend belongs to the Growth Hormone Peptides category of research compounds. Growth Hormone Peptides products are studied for their potential roles in GH axis signaling, metabolic regulation, and growth-related pathways. Generally, researchers who buy this blend in Switzerland often pair it with related compounds in this category to explore complementary pathways in GH research and metabolic studies.

Explore Growth Hormone Blends

Researchers studying multi-peptide GH axis signaling and synergistic GH release may also find relevant compounds in the Growth Hormone Blends subcategory. This blend’s combination of GHRH and GHS pathways makes it a valuable tool for investigating receptor pharmacology and convergent GH signaling.

Explore Muscle & Performance

Researchers studying muscle preservation, recovery, and performance-related mechanisms may also find relevant compounds in the Muscle & Performance category. The blend’s effects on GH-dependent anabolic signaling make it a valuable tool for investigating muscle function and recovery.

Further Research

For researchers seeking to deepen their understanding of the Mod GRF 1-29 & GHRP-2 Blend and its research applications, the following areas may warrant further investigation:

• The relationship between combined GHRH/GHS activity and specific downstream signaling pathways in different cell types
• Comparative studies between the Mod GRF 1-29/GHRP-2 blend and individual components in various GH axis and metabolic models
• The potential for GHRP-2’s hypothalamic effects (somatostatin suppression, endogenous GHRH stimulation) to further amplify GH output
• Mechanistic studies on peptide stability and compatibility in blended systems
• Exploration of the blend’s effects on different tissue systems beyond musculoskeletal and metabolic models

Research Disclaimer

The Mod GRF 1-29 & GHRP-2 Blend is a research peptide formulation supplied for laboratory research use only. Researchers must not use it for human consumption, injection, or any form of therapeutic application. Moreover, this product is not a medicine, pharmaceutical, or medical device. Furthermore, Swissmedic, the FDA, EMA, or any other regulatory authority have not approved it for human use. Researchers should consult Swissmedic for applicable regulations and guidance on research peptide handling in Switzerland.

Generally, the information provided on this page is for educational and scientific reference purposes only. Therefore, it does not constitute medical advice, treatment recommendations, or dosing instructions. Ultimately, researchers bear the responsibility for ensuring that their use of this product complies with all applicable laws, regulations, and institutional guidelines.

Finally, all research involving peptide blends should be conducted by qualified personnel in appropriate laboratory settings with proper safety protocols.