Laboratory Guides
Step-by-step guides for laboratory researchers: how to read documentation, how analytical methods work and how to evaluate a supplier. Every guide lists its sources and the limits of the evidence.
- Documentation & qualityWhite label vs private label research peptides: what resellers should know before relabelingWhite label, private label and supplier-branded research peptides compared for resellers: who owns the label, minimums, and lot traceability.October 30, 20265 min read
- Documentation & qualityWholesale research peptides: how bulk ordering works for laboratories, suppliers and resellersHow research-peptide wholesale works: who qualifies, how tiers and minimums are set, what documentation to get per lot, and how to compare suppliers.October 30, 20267 min read
- Analytical testingCommon Misreadings of Peptide Purity ReportsNine common ways a peptide purity report gets misread, from reading HPLC area % as content by weight to trusting a number with no chromatogram.October 24, 20267 min read
- Documentation & qualityHow to compare research peptide prices: per-milligram cost, net peptide content, and what a low price can hideVial prices are not comparable until you know the milligrams, net peptide content, salt form and testing included. A short method for comparing listings.October 24, 20267 min read
- Documentation & qualityHow to verify a Certificate of Analysis is genuine: report numbers, laboratory contact, lot matching and the signs of a copied reportReading a COA is one skill; checking it is real is another. How to match a report to a lot, confirm it with the laboratory, and spot reused or altered reports.October 24, 20267 min read
- Documentation & qualityPeptide blends: what a multi-peptide vial is, how a blend's Certificate of Analysis works, and how to compare listingsA research peptide blend is two or more peptides lyophilized in one vial. What the label total means, why ratios matter, what a blend COA must show.October 24, 20267 min read
- Peptide fundamentalsGLP-1, GIP and Glucagon Receptor Agonist Peptides: Single, Dual and Triple Agonists Explained for the LaboratoryWhat GLP-1, GIP and glucagon receptor agonist peptides are, how single, dual and triple agonists differ, and what to check on a lipidated peptide COA.October 14, 20264 min read
- Documentation & qualityHow to choose a research-peptide vendor after a closure: a 2025–2026 timeline, a checklist and the red flagsSix research-peptide vendors closed between June 2025 and October 2026: a dated timeline, what follows a closure, ten checks for any supplier and the red flags.October 14, 20268 min read
- Reading researchHow to Read Published Peptide Research: Study Types and Evidence LevelsHow to read research papers on peptides: study types from cell work to meta-analyses, preprints, methods, p-values vs effect sizes, bias and retractions.October 14, 20268 min read
- Documentation & qualityLaboratory Documentation Standards: GLP, ALCOA+ and Why Records MatterALCOA+ data integrity explained principle by principle, how GLP, GMP and ISO 17025 differ, and how to apply them when reading COAs and batch records.October 14, 20268 min read
- RegulatorySoma Chems has stopped taking orders: what its site says, and what to check before you choose any supplierAs of Oct 13, 2026, somachems.com says it is no longer accepting new orders. What the site shows, what to do about an open order, and how to vet any supplier.October 14, 202610 min read
- Documentation & qualityHow to Read a Certificate of Analysis (COA)What each part of a peptide Certificate of Analysis means — batch number, test methods, specification versus result — and the warning signs of a COA you should not rely on.September 27, 20265 min read