⚠ For laboratory research use only. Not for human or veterinary use.
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Research peptide guides

Practical, no-nonsense laboratory guidance — handling, documentation and storage. For laboratory research use only.

TB-500: Two Different Substances, One NameSold as both full-length Thymosin beta-4 at 4963.44 g/mol and the seven-residue fragment Ac-LKKTETQ at 889.01. One number on a certificate tells them apart; most certificates never show it.CompoundsBPC-157: What It Is, and What the Evidence Actually SaysThe 15-residue sequence, why the acetate salt means 10mg of salt is at least 9.22mg of peptide, why "stable BPC-157" is a marketing term, and an honest account of what the published research does and does not establish.CompoundsHow to Verify a Peptide COA: Checking It Is GenuineChecking a certificate is genuine, not just present: name the lab, match the lot, verify the key. Includes a worked example you can run on one of ours in under a minute.Certificates & testingDual and Triple Incretin Agonists ExplainedHow GLP-1, GIP and glucagon receptor agonism differ, what dual and triple co-agonism changes for a study, and why receptor count is a variable to control.CompoundsUK Metabolic Research Compound Suppliers: How to CompareHow to compare suppliers on evidence rather than brand: named analytical method, lot-specific certificates, batch traceability and UK fulfilment. Includes what a certificate should actually show.CompoundsHow to Choose a UK Peptide SupplierA verification checklist you can apply to any supplier, including us: published batch certificates, matching lot numbers, named analytical method, and checking the company on the public register.Buying in the UKHow Much Is Actually In The VialWhy a bigger milligram figure is not always more compound, or the better vial: solubility ceilings, salt versus free peptide, purity as a percentage, dead space, and the cases where the big vial is right after all.Certificates & testingSyringes and Needles for Peptide ResearchWhat the numbers on a syringe mean: gauge, barrel volume, units versus millilitres, and dead space. A UK selection guide for peptide laboratory work.Handling & storageGHRP-2 and GHRP-6 ComparedGHRP-2 and GHRP-6 side by side: sequence, molecular formula, molar mass, CAS number and receptor, and what the one structural difference between them actually means.CompoundsIpamorelin: What “Selective” Actually MeansA five-residue growth hormone secretagogue from Novo Nordisk. What the “selective” label rests on, its structure and mass, the human data, and what to check on a certificate.CompoundsCJC-1295 With and Without DAC: Two Molecules, One NameTwo different molecules share the name. The four substitutions, what the Drug Affinity Complex is, how the name split, what the research covers, the trial that stopped, and the mass check.CompoundsSermorelin: Why 29 of GHRH's 44 Residues Are EnoughThe first 29 residues of GHRH, unmodified. Why 29 were chosen, the position-2 weakness every later analogue fixes, its history as a licensed medicine, the human research, and the certificate check.CompoundsHGH Fragment 176-191 and AOD-9604: One Residue ApartPhenylalanine or tyrosine first, 16 mass units apart. What each name means, where the research came from, what has been tested in people, and how a certificate tells them apart.CompoundsDSIP: The Sleep Peptide Nobody Has Found a Gene ForThe nine-residue sequence and mass, where the name came from, why no gene or receptor has ever been found, what the controlled human studies showed, and the certificate check.CompoundsMOTS-c: The Peptide Written in Mitochondrial DNAA 16-residue peptide encoded in mitochondrial DNA, first described in 2015. The sequence and mass, the mouse research, what has been found in people, who stands behind it, and the certificate check.CompoundsSemax and Selank ComparedSemax and Selank side by side: sequence, molecular formula, molar mass and CAS number, the Pro-Gly-Pro tail they share, and where each one’s first four residues come from.CompoundsAICAR Explained: Acadesine, ZMP and AMPKAICAR names two different molecules. What is sold is acadesine, not AICA ribonucleotide. How it activates AMPK, and what to check on the certificate.CompoundsThymosin Alpha-1: Structure, Identity and HandlingThe 28-residue sequence, why the N-terminal acetyl group is a 42 Da identity check, why A280 quantification fails on this peptide, and what to check on a certificate.Compounds5-Amino-1MQ: The Salt Arithmetic and NNMTSupplied as the iodide salt at 286.11 g/mol, of which only 55.6% is the active cation. What that means for your concentrations, what NNMT does, and why brown is normal.CompoundsHow to Reconstitute Research PeptidesStep-by-step laboratory guide to reconstituting lyophilised research peptides: solvent choice, technique, the concentration formula and the five most common mistakes.Handling & storageHow to Read a Peptide Certificate of Analysis (COA)How to read a peptide COA: batch numbers, HPLC purity, mass spec identity, chromatograms — and the warning signs of a fake certificate.Certificates & testingBacteriostatic vs Sterile Water: Which to UseThe difference between bacteriostatic water, sterile water and acetic acid water for reconstituting research peptides — and when to use each.Handling & storageHow to Store Research Peptides CorrectlyStorage guide for lyophilised and reconstituted research peptides: temperature, light, moisture, freeze-thaw cycles and practical lab habits.Handling & storageWhat Are Research Peptides? Plain-English IntroductionWhat research peptides are, how they work as signalling molecules, how they're synthesised, and what 'research grade' should actually mean.Buying in the UKWhat a Purity Figure Actually Means: HPLC Testing ExplainedHow HPLC purity testing works, what the percentage measures, why purity and identity are different tests, and how to read a chromatogram on a peptide COA.Certificates & testingCopper Peptides in Research: GHK-Cu and AHK-CuWhat copper peptides are, how GHK-Cu and AHK-Cu differ, why the copper complex matters, and how to handle and store them in the laboratory.CompoundsPeptide Bioregulators Explained: Epithalon, Cortagen, CartalaxWhat peptide bioregulators are, where the research tradition comes from, why these sequences are so short, and how to handle and verify them.CompoundsPeptide Reconstitution Troubleshooting: Cloudy, Foaming, Won't DissolveDiagnose and fix common reconstitution problems: cloudy solutions, foaming, powder that won't dissolve, visible particles and unexpected colour.Handling & storageWhy Research Peptides Are Freeze-Dried (Lyophilisation)Why peptides are supplied as lyophilised powder rather than solution, how freeze-drying works, and what it means for handling, storage and stability.Handling & storageBuying Research Peptides in the UK: What to CheckHow to assess a UK research peptide supplier: COAs, HPLC and mass spec, batch numbers, storage, company registration and the legal position.Buying in the UK