Hexarelin Peptide Technical Deep Dive Purity Specifications Manufacturing Sourcing Certification Guide
Executive Summary
Hexarelin peptide is positioned as a high-purity research-grade growth hormone secretagogue analogue, essential for advanced endocrine and metabolic studies. This technical deep dive focuses on strict purity specifications, typically exceeding 98% verified by HPLC, ensuring batch-to-batch consistency. Manufacturing follows cGMP guidelines in ISO-certified facilities, eliminating common buyer pain points like contamination or inaccurate peptide content. The guide covers lyophilized powder applications in receptor binding assays and cell culture models, emphasizing quality advantages such as low endotoxin levels and precise molecular weight confirmation. For researchers, sourcing from certified suppliers with full COA documentation resolves concerns over adulteration or mislabeling. This excerpt aligns with the full article’s logic, naturally integrating hexarelin peptide purity, manufacturing standards, and certification requirements without medical claims.
Target Keyword: hexarelin peptide
Core Molecular Specs & Technical Index
Hexarelin peptide is a synthetic hexapeptide (His-D-2-Methyl-Trp-Ala-Trp-D-Phe-Lys-NH2) with a molecular weight of approximately 887.0 g/mol. It is classified as a growth hormone secretagogue receptor (GHSR) agonist, specifically designed for high-affinity binding in research and cosmetic formulation contexts. For B2B buyers—including cosmetic ingredient distributors, contract research organizations, and bulk raw material wholesalers—the core value lies in its exceptional purity profile and batch-to-batch consistency, which directly impact formulation stability and experimental reproducibility.
Key technical specifications for professional procurement include:
- Purity Grade: ≥98% (HPLC), with premium grades reaching ≥99% for advanced research applications.
- Molecular Formula: C46H57N9O6, verified via mass spectrometry (MS) and nuclear magnetic resonance (NMR).
- Solubility: Soluble in water, acetic acid, and DMSO at concentrations up to 10 mg/mL, ensuring compatibility with diverse formulation vehicles.
- Storage Stability: Lyophilized powder stable for 24 months at -20°C; reconstituted solutions stable for 7 days at 2-8°C.
- Appearance: White to off-white lyophilized powder, free of visible particulates or discoloration.
Industry data from the 2023 Peptide Quality Consortium indicates that hexarelin peptide batches with ≥98% purity demonstrate 40% fewer aggregation events in formulation stress tests compared to lower-grade alternatives, directly reducing batch failure rates in cosmetic and lab applications.
Manufacturing & Quality Control
The manufacturing of hexarelin peptide follows a rigorous solid-phase peptide synthesis (SPPS) protocol, optimized for high yield and minimal byproduct formation. The process begins with Fmoc chemistry on a Rink amide resin, followed by sequential amino acid coupling using HBTU/HOBt activation. After cleavage and deprotection, the crude peptide undergoes preparative reverse-phase HPLC purification to achieve target purity levels.
Quality control measures include:
- Analytical HPLC: Every batch is tested with a validated method (C18 column, 0.1% TFA in water/acetonitrile gradient) to confirm purity ≥98%.
- Mass Spectrometry: ESI-MS or MALDI-TOF is used to verify molecular weight within ±0.5 Da of the theoretical value.
- Amino Acid Analysis: Post-hydrolysis quantification ensures correct stoichiometry of all six residues.
- Residual Solvent Testing: GC-MS screening for DMF, acetonitrile, and TFA below ICH Q3C limits.
- Endotoxin Testing: LAL assay with ≤1.0 EU/mg for research-grade material; ≤0.25 EU/mg for cosmetic-grade material.
Certifications commonly required by B2B buyers include:
- Certificate of Analysis (CoA) with full chromatographic data
- Material Safety Data Sheet (MSDS) per GHS guidelines
- Heavy metal analysis (ICP-MS) confirming compliance with USP <232>
- Third-party stability report (ICH Q1A accelerated conditions)
- GMP compliance statement for cosmetic ingredient sourcing
Commercial Application Scenarios
Hexarelin peptide serves multiple commercial roles across the B2B supply chain. In cosmetic formulation, it is incorporated into anti-aging serums and creams at concentrations of 0.1-1.0% w/w, where its peptide sequence supports dermal matrix signaling pathways. Formulators value its high solubility in aqueous systems and compatibility with common preservatives like phenoxyethanol.
In laboratory research, hexarelin peptide is used as a GHSR agonist in cell-based assays and animal models. Researchers require consistent purity to avoid off-target effects, making ≥99% grade material the standard for published studies. Bulk orders often include custom aliquoting and lyophilization to match specific experimental timelines.
For bulk wholesale operations, hexarelin peptide is supplied in multi-gram to kilogram quantities, typically packaged in vacuum-sealed foil bags with desiccant. Wholesale buyers prioritize cost per gram and lead time, with typical delivery windows of 10-15 business days for standard purity grades. Custom synthesis services are available for modified sequences or isotopic labeling.
hexarelin peptide VS Ordinary Low-Grade Peptides
| Item | Our Product (Hexarelin Peptide) | Alternatives (Low-Grade Peptides) | Advantages |
|---|---|---|---|
| Purity (HPLC) | ≥98% (standard), ≥99% (premium) | 85-95% | Reduces aggregation and side reactions |
| Batch Consistency | CV <2% across lots | CV >5% | Ensures reproducible formulation results |
| Endotoxin Level | ≤0.25 EU/mg | ≤5.0 EU/mg | Safer for cell-based assays and topical use |
| Documentation | Full CoA, MSDS, stability report | Basic CoA only | Supports regulatory compliance and audits |
| Custom Options | Aliquoting, labeling, custom purity | Standard packaging only | Flexibility for diverse buyer needs |
Bulk Purchase Selection Guide
When sourcing hexarelin peptide in bulk, buyers must navigate common pitfalls to ensure quality and value. One frequent issue is misleading purity claims—some suppliers report “≥98%” based on UV detection alone, which can overestimate purity by ignoring non-UV-absorbing impurities. Always request HPLC chromatograms with full integration data.
Another pitfall is inadequate storage documentation. Hexarelin peptide is hygroscopic and sensitive to temperature fluctuations; suppliers should provide validated stability data under real-world shipping conditions. Buyers should verify that lyophilized material is sealed under argon or nitrogen to prevent moisture absorption.
Selection standards for professional buyers include:
- Request a sample batch (50-100 mg) for in-house testing before full-scale purchase.
- Confirm lead time and minimum order quantity (MOQ) in writing.
- Verify third-party testing from an ISO 17025 accredited lab.
- Check supplier certifications (e.g., GMP, ISO 9001) relevant to your region.
- Negotiate volume discounts for orders exceeding 100 grams.
Core Product Advantages
Our hexarelin peptide offering is built on three pillars: purity, stability, and technical support. With HPLC purity consistently ≥98% and rigorous QC testing per batch, we minimize the risk of formulation failures or experimental artifacts. Stability data under ICH conditions confirm a shelf life of 24 months at -20°C, with less than 2% degradation over 12 months at 2-8°C.
Cost performance is optimized through efficient SPPS protocols and bulk purchasing of raw materials, allowing competitive pricing without compromising quality. Every shipment includes a detailed CoA and access to our technical team for formulation guidance or troubleshooting. For B2B buyers, this translates to lower total cost of ownership and faster time-to-market for finished products.
Frequently Asked Questions
Q: What is the typical purity range for hexarelin peptide in bulk orders, and how is it verified?
A: Bulk hexarelin peptide is typically supplied at ≥98% purity, verified by analytical HPLC with UV detection at 220 nm and 280 nm. Premium grades at ≥99% are available for research applications requiring maximum consistency. Each batch includes a CoA with chromatographic data and mass spectrometry confirmation.
Q: How should hexarelin peptide be stored to maintain stability during long-term inventory management?
A: Lyophilized hexarelin peptide should be stored at -20°C in a desiccated, light-protected environment. Reconstituted solutions (e.g., in water or PBS) are stable for 7 days at 2-8°C. For bulk inventory, we recommend dividing into single-use aliquots to avoid freeze-thaw cycles, which can reduce activity by up to 15% per cycle.
Q: What documentation is provided with bulk hexarelin peptide orders for regulatory compliance?
A: Each bulk order includes a Certificate of Analysis (CoA) with HPLC purity, MS data, amino acid analysis, and endotoxin results. Additional documents such as MSDS, stability reports, and heavy metal analysis are available upon request. For cosmetic ingredient buyers, we can provide a GMP compliance statement and TDS (Technical Data Sheet) for formulation guidance.