Research Insights
Peptide science, analytical methods, and lab techniques from the Peptech team.
Retatrutide vs Tirzepatide: A Research Comparison
How retatrutide (triple agonist) and tirzepatide (dual agonist) compare as research peptides — mechanism, class, and verification.
Semaglutide Peptide: A Research Overview
A research overview of semaglutide, the GLP-1 receptor agonist peptide that anchors the incretin research family.
Sermorelin vs Ipamorelin vs Tesamorelin: A Research Comparison
A research comparison of three GH-secretagogue peptides — sermorelin, ipamorelin, and tesamorelin — and the two receptor families they represent.
BPC-157 vs TB-500: A Research Comparison
How BPC-157 and TB-500 compare as tissue-repair research peptides — different mechanisms, and why they are frequently studied as a blend.
What Is CJC-1295? A Research Peptide Overview
A research overview of CJC-1295, a GHRH analog studied in endocrine research — including the DAC vs no-DAC distinction and the CJC-1295/ipamorelin pairing.
What Is Retatrutide? A Research Peptide Overview
A research overview of retatrutide, the triple-receptor (GIP/GLP-1/glucagon) agonist peptide studied in metabolic-signaling research.
What Is GHK-Cu? Copper Peptide Research Overview
A complete research overview of GHK-Cu, the copper tripeptide-1 studied in laboratory models of extracellular-matrix synthesis and skin biology.
What Is BPC-157? A Complete Research Overview
A complete research overview of BPC-157, the synthetic pentadecapeptide studied in laboratory models of angiogenesis and connective-tissue repair.
What Is TB-500? A Research Peptide Overview
A research overview of TB-500, a synthetic peptide related to thymosin β4 studied in actin-regulation and cell-migration models.
Glutathione Peptide: What It Is and Research Applications
Glutathione is a tripeptide studied in antioxidant and cellular research.
What Is Tesamorelin? A Research Peptide Overview
A research overview of tesamorelin, a stabilized growth-hormone-releasing-hormone (GHRH) analog studied in endocrine-signaling research.
Tirzepatide Peptide: A Research Overview
A research overview of tirzepatide, the dual GIP/GLP-1 receptor agonist peptide studied in metabolic-signaling research.
Lab Standards
Research fundamentalsHow to read a Certificate of Analysis
Identity, purity, net content, endotoxin — what each line on a COA actually tells you, and where labs differ.
Why cold chain matters for lyophilized peptides
Lyophilized cakes are supplied in a stable dry state. Cold-chain transit and lot-specific COA data support research-material integrity.
Third-party testing, explained
Why we test every batch at an independent ISO 17025 lab before release — and what we do when a result doesn't pass.
Lot traceability from synthesis to bench
How the QR code on every vial maps back to a single manufactured lot and its full analytical record.