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Equipment & Quality

Third-party testing

Independent laboratory analysis of a peptide by a facility not affiliated with the manufacturer. Provides unbiased verification of purity, identity, and absence of contaminants. A hallmark of reputable peptide suppliers.

Frequently Asked Questions

What is Third-party testing?
Independent laboratory analysis of a peptide by a facility not affiliated with the manufacturer. Provides unbiased verification of purity, identity, and absence of contaminants. A hallmark of reputable peptide suppliers.
Why is Third-party testing important in peptide research?
Third-party testing relates to the tools and quality standards that ensure peptide safety and efficacy. Proper equipment and testing are critical for accurate dosing, contamination prevention, and verifying peptide authenticity.

Related Terms

Certificate of analysis

A document from a laboratory confirming the identity, purity, and quality of a peptide batch. Should include HPLC purity percentage, mass spectrometry confirmation, and endotoxin levels. Essential for verifying peptide quality.

Purity percentage

The proportion of the desired peptide in a sample, determined by HPLC analysis. Research-grade peptides are typically 95–98% pure; pharmaceutical-grade exceeds 99%. Higher purity reduces the risk of adverse reactions.

Endotoxin testing

Laboratory analysis (typically Limulus Amebocyte Lysate or LAL test) to detect and quantify bacterial endotoxins in peptide products. FDA limits are typically <5 EU/kg body weight for injectable products.

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