A common question from researchers ordering peptides in summer: does a few days in a hot delivery truck ruin them? For lyophilized peptides, the evidence-backed answer is almost always no […]
HPLC-UV vs LC-MS: What Each Test Proves on a Peptide COA
Most peptide certificates of analysis lean on two techniques: HPLC-UV and LC-MS. They are often mentioned together, but they answer two different questions — and a trustworthy COA needs both. […]
Peptide Storage and Stability: A Lab Handling Guide
Lyophilized peptides are remarkably stable materials — when they are stored correctly. Handled poorly, even a 99%-pure lot degrades before it is ever used. This guide covers the storage variables […]
Most peptide companies won’t pick up. We do.
The research peptide industry has a customer service problem. No phone numbers, no real people, no responses. ANKR Lab is built differently: USA-based team, real humans, and a phone that actually gets answered.
CJC-1295 vs Tesamorelin: What Researchers Need to Know in 2026
CJC-1295 vs Tesamorelin: What Researchers Need to Know in 2026 ANKR Lab Research Team • Updated July 2026 • 8 min read CJC-1295 and tesamorelin are both growth hormone-releasing hormone […]
HPLC, mass spec, endotoxin: a researcher’s guide to peptide lab testing
What HPLC, mass spectrometry, and endotoxin testing actually measure on a research peptide, why each method matters, and how to read the results on a Certificate of Analysis.
What is Research Use Only (RUO)? An honest guide
Research Use Only (RUO) is a regulatory classification with specific legal meaning. A clear explanation of what RUO is, what it isn’t, and what it means for buyers and suppliers.
What does cGMP mean for research peptides?
A clear explanation of cGMP (current Good Manufacturing Practice) standards as they apply to research peptides, FDA Drug Master Files, and batch traceability.
How to read a peptide Certificate of Analysis (COA)
A field guide to reading a peptide COA. What every field means, what to verify, and how to spot a fake. Written for researchers who need to defend their data.
How to verify a research peptide supplier in 2026
A practical guide for researchers: how to verify a peptide supplier’s testing, sourcing, classification, and privacy practices before you buy. Real signals to look for, real red flags to avoid.