Epitalon Peptide Sourcing Guide Purity Specifications Manufacturing Certifications for B2B Wholesale

Core Molecular Specs & Technical Index

Epitalon peptide, also known as Epithalon or Epitalon (Ala-Glu-Asp-Gly), is a synthetic tetrapeptide with the amino acid sequence L-alanyl-L-glutamyl-L-aspartyl-glycine. For B2B wholesale buyers—including cosmetic manufacturers, research laboratories, and raw material distributors—understanding the precise molecular specifications is the first step toward ensuring product efficacy and regulatory compliance. This peptide is valued for its role in cellular signaling and is widely incorporated into advanced anti-aging formulations and experimental research protocols. The core value for bulk purchasers lies in sourcing a product that meets rigorous purity standards, consistent batch-to-batch quality, and verifiable manufacturing certifications.

• Molecular Formula & Weight: C14H22N4O9 with a molecular weight of 390.35 g/mol. The peptide is a white to off-white lyophilized powder, highly soluble in water (≥50 mg/mL) and DMSO.
• Purity Specification: Industry-standard purity for B2B transactions is ≥98% as determined by HPLC (High-Performance Liquid Chromatography). Premium-grade material for research applications often requires ≥99% purity with single impurity levels below 0.5%.
• Solubility & Reconstitution: Epitalon peptide is freely soluble in sterile water for injection (WFI) or phosphate-buffered saline (PBS). For cosmetic formulations, it is typically pre-dissolved in a preservative-free aqueous solution at concentrations of 1–10 mg/mL.
• Storage Conditions: Lyophilized powder must be stored at -20°C (freezer) in a desiccated, light-protected environment. Reconstituted solutions should be used immediately or stored at 2–8°C for no more than 72 hours to maintain stability.
• Stability Data: Under recommended storage, the lyophilized peptide retains >95% purity for 24 months. Accelerated stability studies (40°C/75% RH for 4 weeks) show a degradation rate of less than 2% per month.

According to the 2023 Peptide Industry Quality Standards Report, over 78% of B2B buyers now require third-party HPLC and mass spectrometry (MS) certificates for each batch of epitalon peptide. This trend reflects growing demand for traceable, high-purity raw materials in both cosmetic and laboratory sectors.

Manufacturing & Quality Control

The production of high-purity epitalon peptide involves a multi-step process that begins with solid-phase peptide synthesis (SPPS) using Fmoc chemistry. This method ensures precise amino acid coupling and minimizes racemization. After synthesis, the crude peptide is cleaved from the resin and purified using preparative HPLC with a C18 reverse-phase column. The final product is lyophilized under sterile conditions to produce a stable, free-flowing powder. Quality control is paramount, and every batch undergoes rigorous testing before release.

• Production Process: SPPS with Fmoc-protected amino acids, followed by TFA cleavage and ether precipitation. The entire process is conducted in a cGMP-compliant facility with ISO 9001:2015 certification.
• Purification: Preparative HPLC with a gradient of acetonitrile/water (0.1% TFA) achieves >98% purity. The target peak is collected with a retention time window of 12.5–13.2 minutes.
• Third-Party Testing: Each batch is independently tested by an accredited laboratory (e.g., SGS or Eurofins) for identity (MS), purity (HPLC), peptide content (amino acid analysis), and residual solvents (GC).
• Certifications: Standard certifications include Certificate of Analysis (CoA), Certificate of Origin, and Material Safety Data Sheet (MSDS). For cosmetic-grade material, additional certifications such as GMP, ISO 22716 (Cosmetic GMP), and heavy metal testing (ICP-MS) are provided.
• Batch Traceability: Every batch is assigned a unique lot number, allowing full traceability from raw material procurement to final product shipment. Retained samples are stored for 3 years.

Commercial Application Scenarios

Epitalon peptide is utilized across three primary commercial channels: cosmetic formulation, laboratory research, and bulk wholesale distribution. Each application demands specific product characteristics and documentation. For cosmetic manufacturers, the peptide is incorporated into serums, creams, and masks targeting skin rejuvenation and cellular health. In research settings, it is used in cell culture studies and animal models to investigate telomere regulation and aging pathways. Bulk wholesalers require large quantities (10g–1kg) with consistent quality and competitive pricing.

• Cosmetic Formulation: Epitalon peptide is added to water-phase formulations at 0.1–1.0% (w/w). It is compatible with most preservatives and antioxidants, but should not be exposed to temperatures above 40°C during manufacturing. Finished products should be packaged in airless pumps to maintain stability.
• Lab Research: For in vitro studies, the peptide is reconstituted in sterile PBS at 1 mg/mL and used at final concentrations of 10–100 µM. In vivo studies typically use subcutaneous injections at 0.1–1.0 mg/kg body weight. All research-grade material must include a CoA with MS and HPLC data.
• Bulk Wholesale: Wholesale buyers typically order 10g, 50g, or 100g units. Custom packaging (e.g., vacuum-sealed foil bags with desiccant) and labeling are available. Lead time is 7–14 business days for standard orders, with rush options available.

Epitalon Peptide VS Ordinary Low-Grade Peptides

Bulk Purchase Selection Guide

When sourcing epitalon peptide for B2B wholesale, buyers must navigate common pitfalls to ensure they receive a product that meets their specifications. The most frequent issues include misrepresented purity, lack of third-party testing, and inadequate storage during transit. To avoid these problems, follow a systematic selection process. First, request a complete documentation package including CoA, MSDS, and any relevant certifications. Second, verify the supplier’s manufacturing facility through a virtual or on-site audit. Third, ask for a small sample (e.g., 100 mg) to test in your own laboratory before placing a bulk order.

• Common Pitfalls: Suppliers offering prices significantly below market average often use lower-grade raw materials or skip purification steps. Always compare prices against the current market rate for ≥98% pure epitalon peptide.
• Selection Standards: Prioritize suppliers with cGMP certification, transparent batch records, and a proven track record in the peptide industry. Check for positive reviews or references from other B2B buyers.
• Buyer Checklist: Confirm purity (≥98% by HPLC), peptide content (≥95% by amino acid analysis), residual TFA (<1%), endotoxin levels (<1 EU/mg), and sterility (if required). Ensure the supplier provides a CoA for each batch.

Core Product Advantages

Our epitalon peptide offers distinct advantages that make it the preferred choice for B2B wholesale buyers. The product is manufactured in a state-of-the-art facility that adheres to cGMP guidelines, ensuring consistent quality across all batches. With a purity of ≥99% as verified by HPLC and MS, our peptide meets the most stringent requirements for cosmetic formulations and research applications. Stability is enhanced through optimized lyophilization and packaging, with a shelf life of 24 months under proper storage conditions. Cost performance is achieved through efficient production processes and bulk purchasing options, allowing us to offer competitive pricing without compromising quality. Additionally, our technical support team provides formulation guidance, stability testing data, and regulatory documentation to assist buyers in integrating epitalon peptide into their products.

Frequently Asked Questions

Q1: What is the minimum purity level required for epitalon peptide in cosmetic formulations?
For cosmetic applications, a minimum purity of 98% by HPLC is recommended to ensure product safety and efficacy. Higher purity (≥99%) is preferred for premium formulations where consistency and stability are critical. Always request a CoA from your supplier to verify purity levels.

Q2: How should epitalon peptide be stored during shipping and after receipt?
During shipping, the peptide should be kept in insulated containers with ice packs to maintain temperatures below -20°C. Upon receipt, store the lyophilized powder immediately in a freezer at -20°C, protected from light and moisture. Avoid repeated freeze-thaw cycles.

Q3: What certifications should I look for when sourcing epitalon peptide for B2B wholesale?
Essential certifications include a Certificate of Analysis (CoA) with HPLC and MS data, a Material Safety Data Sheet (MSDS), and a Certificate of Origin. For cosmetic-grade material, also request GMP certification (ISO 22716) and heavy metal testing results. For research-grade material, ensure the supplier provides batch-specific purity and impurity data.