BPC-157 is a 15-residue fragment of a gastric protein studied almost entirely in one laboratory's animal models; TB-500 is the seven-residue actin-binding motif of thymosin β4, a protein with a broad literature of its own. Origin, sequence, mechanism as the literature describes it, the size and shape of each evidence base, UK and anti-doping status, handling, and certificate expectations.
Which solvent to use for which compound in the catalogue: sterile water, bacteriostatic water, dilute acetic acid, dilute hydrochloric acid and DMSO. How to dissolve a lyophilised peptide cleanly, how to calculate stock concentration in mg/mL and molarity, aliquoting, and how long stock solutions keep. Laboratory practice only.
Two copper-binding tripeptides that differ by a single methyl group: how each holds copper, what the published literature actually studied for each, why a 2007 hair-follicle study is so often misattributed, the gap between cosmetic and research use, and what to look for on a certificate of analysis for a copper complex.
What the GLOW and KLOW research blends contain, what each component is and what its own literature says, what co-lyophilisation means and why the blends are sold as a single vial, why a blend's certificate of analysis is harder to read than a single peptide's, and why there is no published literature on the combinations themselves.
A practical checklist for buying research peptides in the UK. What a supplier should be able to show before you order, how to read and verify a certificate of analysis, the warning signs that a listing is not what it claims, how delivery and returns work for research chemicals, and where the law stands. Written so that the checks can be applied to any supplier, including us.
A line-by-line walk through a research peptide certificate of analysis: the header, identity by mass spectrometry, purity by HPLC, net peptide content, endotoxin, what is usually not tested, who signed it, and the red flags that should make you put a certificate down.
What reversed-phase HPLC, electrospray LC-MS, MALDI-TOF, amino acid analysis and the LAL test actually measure, what the numbers on a certificate mean, and why a purity of 99.41% should be read as a method result rather than a fact about the vial.
Ipamorelin is a selective ghrelin-receptor agonist; CJC-1295 without DAC is a stabilised GHRH(1–29) analogue acting at the GHRH receptor. Receptors, structure, half-life, the difference between CJC-1295 with and without DAC, why the two are studied together, UK status, handling and certificate expectations.
PT-141 (bremelanotide) is the free-acid form of MT-2 (Melanotan II), differing by one atom at the C-terminus and about one dalton in mass. Origin, receptor profile, the clinical path from tanning agent to a licensed US medicine, UK regulatory position, handling and the certificate detail that tells them apart.
NAD+ is the cell's central redox coenzyme and the substrate of sirtuins, PARPs and CD38; MOTS-c is a 16-residue peptide encoded in mitochondrial DNA and linked to AMPK signalling. What each is, how the literature describes them, where they meet in energy-metabolism research, UK and anti-doping status, handling and certificate expectations.
How the Human Medicines Regulations 2012, the Misuse of Drugs Act 1971, the Psychoactive Substances Act 2016, the cosmetics regulation, UK REACH and the WADA Prohibited List bear on peptides sold for laboratory research in the UK, what a responsible seller does, and what the buyer is responsible for.
Semaglutide is a selective GLP-1 receptor agonist built on the GLP-1 sequence; tirzepatide is a GIP/GLP-1 co-agonist built on the GIP sequence. Receptors, backbone, lipidation chemistry, half-life, the head-to-head trial record including SURMOUNT-5, UK licensing, and what differs on a certificate of analysis.
Four lipidated peptides from the incretin and amylin literature set side by side: receptor targets, backbone origin, substitutions, lipidation chemistry, half-life, molecular weight, development and UK licensing status, headline trial figures, and the handling differences that matter at the bench.
Semax is ACTH(4–7) with a Pro-Gly-Pro tail; Selank is tuftsin with the same tail. Parent peptides, sequences, what the largely Russian literature reports for each, the limits of that evidence, UK status, handling and the certificate checks that tell them apart.
Sermorelin is native GHRH(1–29); tesamorelin is the full 44-residue hormone with an N-terminal hexenoyl group that blocks DPP-4. Structure, the enzyme problem both were designed around, half-life, the licensing history of Geref and Egrifta, UK status, handling and certificate expectations.
Why peptides are supplied freeze-dried, the chemical and physical routes by which they degrade, how to store sealed vials and reconstituted solutions, how lipidated, short and copper-complexed peptides differ, and what is reasonable when shipping within the UK.
Tirzepatide and retatrutide (listed here as GLP-3) share a GIP-based backbone and a fatty-diacid tail, and differ at the glucagon receptor. Receptors, structure, half-life, trial record, licensing status in the UK, and the handling and certificate points that matter at the bench.
A peptide is a short chain of amino acids joined by peptide bonds. This guide explains what that means, where the line between a peptide and a protein falls, the peptides the body makes, how synthetic peptides are made and modified, the peptides used as licensed medicines, what a research peptide is, whether peptides are steroids, and how peptide quality is measured.
Reconstitution concentration and aliquot volume, and molarity from molecular weight, with the weights of every compound in the catalogue built in.
Molecular formula, average molecular weight and monoisotopic mass from any amino acid sequence, with the catalogue's sequences built in.
You must be 18 or over to use this site or place an order. Everything sold here is for in-vitro laboratory research only, not for human or veterinary use, and not a medicine.