Lab Testing & Quality Assurance

Every Vionex Peptides product undergoes comprehensive testing in ISO/IEC accredited facilities to ensure the highest standards of purity and quality.

We Take That Responsibility Seriously

Certified Lab Testing

At Vionex Peptides, quality is our top priority. Every product we offer is rigorously tested using the most advanced technology available in the United States.

Peptide Purity and Quantity

Each peptide undergoes comprehensive analysis for purity, identity, and structural integrity.

Endotoxin Testing

To protect our customers, we perform rigorous testing to detect and quantify endotoxins.

Heavy Metal Testing

Vionex Peptides products are free of harmful contaminants and safe for use.

Sterility Testing

We ensure that products or samples are completely free of viable microorganisms through carefully controlled, contamination-free analytical procedures.

Our Testing Process

A rigorous 6-step quality assurance process ensures every product meets our exacting standards.

1

Raw Material Testing

All raw materials are tested for identity and purity before synthesis begins.

2

Synthesis & Purification

Peptides are synthesized using solid-phase peptide synthesis (SPPS) and purified via HPLC.

3

In-Process Quality Checks

Multiple quality checkpoints throughout the manufacturing process ensure consistency.

4

Third-Party Lab Analysis

Every batch is sent to independent ISO/IEC accredited laboratories for verification.

5

Certificate of Analysis

A detailed COA is generated for every batch documenting purity, identity, and quality metrics.

6

Final Release

Only batches meeting our strict specifications are approved for release.

Independent Third-Party Testing

We don’t just test our own products — every batch is independently verified by ISO/IEC 17025 accredited laboratories.

All test results are documented in our Certificates of Analysis (COAs), available in our COA Library for full transparency.

Testing Methods

We employ industry-leading analytical methods to verify every aspect of our products.

HPLC Analysis

High-Performance Liquid Chromatography to verify purity and identify impurities.

Mass Spectrometry

Confirms molecular weight and structural identity of each peptide.

Endotoxin Testing

LAL testing ensures products are free from harmful bacterial endotoxins.

Sterility Testing

Microbial testing confirms products meet sterility requirements.

Amino Acid Analysis

Verifies the correct amino acid composition and sequence.

Residual Solvent Testing

Ensures no harmful solvent residues remain in the final product.

cGMP Compliant Facilities

Our manufacturing and testing operations are conducted in facilities that comply with current Good Manufacturing Practice (cGMP) guidelines.