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Peptide Testing Insights

Expert articles on peptide analysis, quality control, and analytical techniques from our laboratory scientists

From HPLC purity data and mass spectrometry guides to GLP-1 peptide testing trends and compounding pharmacy compliance, research-backed insights from 1,400+ samples tested.

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All Articles

how to read a peptide coa — independent peptide lab testing
Third-Party Verification

How to Read a Peptide COA Without Getting Fooled

A line-by-line walkthrough of a peptide certificate of analysis: which numbers matter, which ones suppliers inflate, and how to verify a COA independently.

Jul 30, 2026
3 min read
who can test peptides for purity — independent peptide lab testing
Purity Testing

Who Can Test Peptides for Purity? (A Reddit-Style Q&A)

Community-style Q&A on who can actually test research peptides for purity — what to look for in a lab, what it costs, and how to send a sample. Answers from ACS Peptide Testing Labs analytical chemists.

Jul 2, 2026
7 min read
Kinetic chromogenic LAL endotoxin testing assay plate with injectable peptide vials in pharmaceutical lab
Industry News

Endotoxin Testing Now Available: Quantitative LAL Assay for Peptides

ACS Peptide Testing Labs now offers quantitative endotoxin testing via LAL assay per USP <85>. Learn why endotoxin screening is critical for injectable peptides, compounding pharmacies, and research applications.

Mar 30, 2026
7 min read
Peptide therapeutics market growth visualization with research vials and molecular structures in laboratory
Industry Trends

Peptide Therapeutics Market in 2026: Growth Drivers, Key Players, and What It Means for Testing

The global peptide therapeutics market is projected to exceed $60 billion by 2028. Here's what's driving growth, which peptides are leading demand, and why independent testing is more critical than ever.

Mar 15, 2026
10 min read
ICP-MS and GC-MS instruments for peptide heavy metal and residual solvent contaminant testing
Safety Testing

Peptide Heavy Metal & Residual Solvent Testing: Why Contaminant Screening Matters

Learn why heavy metal and residual solvent testing is essential for research peptides. Understand ICP-MS and GC-MS methods, ICH limits, and how contaminants affect your results.

Mar 13, 2026
12 min read
Scientist analyzing peptide samples with rising demand trend chart showing testing growth
Industry Trends

Peptide Testing Demand in 2026: What's Driving the Surge and Which Tests Matter Most

Testing demand for research peptides has surged 40%+ year-over-year. We break down which tests are most requested, which peptides are driving volume, and how testing needs are evolving.

Mar 10, 2026
9 min read
Novel research peptide molecular structures in cutting-edge biotechnology laboratory
Industry Trends

Emerging Research Peptides in 2026: New Molecules, New Testing Challenges

From oral GLP-1 agonists to mitochondrial-targeted peptides and AI-designed sequences, the research peptide landscape is evolving rapidly. Here's what's new and what it means for analytical testing.

Mar 5, 2026
11 min read
Researcher comparing peptide testing services options in an analytical laboratory
Lab Selection

How to Choose Peptide Testing Services: A Buyer's Guide for Researchers & Companies

Learn how to choose the right peptide testing services for your lab, pharmacy, or research organization. Compare HPLC purity, mass spectrometry, contaminant screening, and more.

Feb 26, 2026
10 min read
Mail-in peptide testing lab serving researchers nationwide with overnight shipping
Lab Selection

Peptide Testing Near Me: Mail-In Lab Services in Every US State

Searching for 'peptide testing near me'? Location does not change your results. Here is how mail-in peptide testing works from any US state, what to ship, and how packing affects sample integrity.

Feb 22, 2026
9 min read
Laboratory scientist verifying peptide identity using mass spectrometry analysis
Quality Assurance

Is My Peptide Real? How Labs Verify Peptide Identity for Research & Pharma

Learn how mass spectrometry and HPLC confirm whether your peptide matches what the supplier claims, critical for research integrity, regulatory compliance, and compounding pharmacy quality control.

Feb 22, 2026
10 min read
Scientist reviewing peptide supplier Certificate of Analysis for independent verification
Quality Assurance

Peptide Supplier Verification: How to Audit Your Peptide Source with Lab Testing

Don't trust a peptide supplier blindly. Learn how to verify peptide vendors using independent lab testing, COA cross-checks, and quality auditing, a data-driven guide for researchers, distributors, and compounding pharmacies.

Feb 22, 2026
11 min read
Compounding pharmacy laboratory with peptide testing equipment and FDA compliance documentation
Industry

Peptide Testing for Compounding Pharmacies: FDA Compliance & Quality Requirements

Compounding pharmacies face growing FDA scrutiny over peptide quality. Learn the testing requirements for 503A and 503B facilities, which tests are mandatory, and how independent COA verification protects your patients and license.

Feb 22, 2026
12 min read

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