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Lab Testing
Quality Assurance at Certified Peptides
Reliability and transparency are the cornerstones of everything we build at Certified Peptides.
Third-party verified
every single batch
We rigorously screen every batch at an ISO/IEC accredited laboratory—certified by the Department of Ecology—verifying purity, content, endotoxins, and heavy metals.
Quality is our primary mandate. We utilize the most advanced analytical technology available in the U.S. to test every product we sell. By partnering exclusively with top-tier American laboratories, we confirm purity, identity, and safety profiles for every batch. Selecting validated, third-party tested research peptides is critical for accurate results, and we take that responsibility seriously.
UNCOMPROMISING STANDARDS
Certified Lab Verification
We prioritize excellence above all else. Using state-of-the-art U.S. technology, we subject every item to exhaustive testing protocols.
Identity & Purity Analysis
Comprehensive screening to verify structural integrity, identity, and concentration.
Endotoxin Screening
Strict quantification protocols ensure products are well within safe limits.
Heavy Metal Detection
Detailed analysis to confirm products are free from harmful metal contaminants.
Sterility Verification
Using controlled analytical procedures, we confirm samples are devoid of viable microorganisms.
Our Testing Facility
Partnered with Vanguard Laboratory — Olympia, WA
Vanguard Laboratory
Based in Olympia, Washington, Vanguard Laboratory provides extensive chemical and microbiological analysis. Holding ISO/IEC 17025:2017 accreditation—the gold standard for testing labs—they guarantee precise and valid results. Additionally, they are fully accredited by the Department of Health and Department of Ecology for controlled substance analysis.
Advanced Testing for Better Research
Their capabilities cover sterility, purity, heavy metals, and endotoxin testing, adhering to USP <61> and USP <71> standards. These rigid protocols reflect a deep dedication to regulatory compliance and quality assurance.
Superior Analytical Insight
Renowned for technical expertise and service, Vanguard supports our mission by delivering the dependable, high-quality data necessary for product validation and research integrity.
Browse COA Library
Yes, every peptide is subject to rigorous analysis, including tests for weight, purity, heavy metals, endotoxins, and bacterial presence.
Our standard is ≥99% purity. We verify this via HPLC and provide batch-specific documentation in our COA library whenever available.
We primarily use Solid-Phase Peptide Synthesis (SPPS) to build amino acid chains. Post-synthesis, we purify via HPLC and confirm identity through Mass Spectrometry.