Peptide Science Blog | TWO FACE Research

Peptide science, written plainly

Original articles on synthesis, storage, quality testing and receptor pharmacology — for researchers and professionals evaluating compounds and suppliers.

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The GLP-1 Research Landscape: From Gut Hormone to Multi-Agonist

GLP-1 research didn't start with weight management — it started with a question about why oral glucose triggers more insulin release than injected glucose. Here's how that question led to today's multi-agonist compounds.

Jul 26, 2026
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How to Choose a Research Peptide Supplier

Price is the easiest thing to compare between suppliers and the least useful. Here's a framework built around testing transparency, cold chain discipline, and sourcing — the variables that actually predict a bad batch.

Jul 24, 2026
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How to Read a Peptide Certificate of Analysis (COA)

A COA is only useful if you know what each section is actually reporting. Here's how to read the purity, identity, and mass-spec sections without taking the summary line on faith.

Jul 22, 2026
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Peptide Storage & Stability: A Practical Guide for Research Labs

Lyophilized peptides are stable for years at the right temperature and unstable within weeks at the wrong one. Here's what actually drives degradation, and how to store and reconstitute research peptides correctly.

Jul 20, 2026
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What Are Research Peptides? A Primer

Peptides sit in a specific chemical niche between small molecules and full proteins. Here's what defines them, how they're made, and why that manufacturing process matters for research quality.

Jul 18, 2026