Research Blog
Guides, comparisons, and laboratory resources for peptide researchers.
RT3 Side Effects: What the Trials Reported
Almost everything known about rt3's side-effect profile comes from two phase 2 trials. The picture is consistent: the adverse events are overwhelmingly gastrointestinal, they track with dose, and they cluster during escalation. The larger issue is what has not been established yet.
RT3 Results: What Phase 2 Showed
The rt3 numbers get quoted constantly and contextualised almost never. Here is what the two phase 2 trials were designed to test, what they reported, and the conditions those figures were produced under.

Are Peptides Legal in the UK? The Actual Legal Position
The honest answer is that it depends entirely on what the peptide is sold for, not what the peptide is. Buying and possessing research peptides for laboratory work is lawful in the UK. Supplying them for human consumption is a criminal offence, and that distinction is the whole of the law here.

BPC-157 Research Guide: What Scientists Need to Know
BPC-157 is one of the most widely studied research peptides in preclinical science. Learn about its molecular structure, stability, research applications, and laboratory handling.
RT3: The Triple Receptor Agonist Peptide Explained
RT3 simultaneously targets three receptors, GIPR, GLP-1R, and GCGR. Explore its unique triple mechanism and current research status.

TB-500 vs BPC-157: A Researcher's Comparison
TB-500 and BPC-157 are two of the most widely studied peptides in preclinical research. Explore their molecular differences, research applications, and combined laboratory protocols.

GHK-Cu and Collagen: What the ECM and Fibroblast Research Shows
GHK-Cu is a naturally occurring copper-binding tripeptide studied for collagen synthesis, ECM biology, and gene expression research. Learn about its molecular properties and laboratory handling.

CJC-1295 vs Ipamorelin: Differences and Combined Use
CJC-1295 and Ipamorelin are two widely studied growth hormone secretagogues with complementary mechanisms. Learn about their differences, research applications, and why they're often combined in laboratory protocols.

Peptide Storage Guide: How to Store Research Peptides Correctly
Proper storage is critical for maintaining peptide stability and integrity. Learn the essential storage conditions for lyophilised and reconstituted peptides, and avoid common mistakes that compromise research quality.
RT3 vs Semaglutide: A Research Comparison
RT3 is a triple GIP/GLP-1/glucagon agonist; Semaglutide is a single GLP-1 agonist. Compare mechanisms, Phase 2 outcomes, and research applications.
What is RT3? Complete Research Guide
RT3 is a triple receptor agonist peptide. A complete research guide to its mechanism, current status, and laboratory handling.

BPC-157 and TB-500: Research Overview
BPC-157 and TB-500 are two of the most extensively studied tissue-repair research peptides. A complete overview of their mechanisms and combined use.

GHK Peptide (GHK-Cu): What the Copper Tripeptide Is and How It Works
GHK-Cu is a naturally occurring copper tripeptide studied across collagen synthesis, gene expression, and tissue remodelling research. A complete guide.
RT3 vs Tirzepatide: A Researcher's Comparison
RT3 adds glucagon receptor agonism to the GIP/GLP-1 dual mechanism of Tirzepatide. A side-by-side comparison of the two most-studied incretin research peptides.

Tesamorelin vs CJC-1295: GH Secretagogue Research Comparison
Tesamorelin is a stabilised full-length GHRH analogue. CJC-1295 is a truncated GHRH(1-29) analogue with optional DAC technology. Comparison of mechanism, pulsatility, and research applications.

Melanotan I vs Melanotan II: Receptor Selectivity Comparison
Melanotan I and Melanotan II differ in receptor selectivity. One acts narrowly at MC1R, the other broadly across the melanocortin receptor family. A research comparison of mechanism and applications.

Semax vs Selank: Russian Nootropic Peptide Comparison
Semax and Selank are both Russian-developed heptapeptides studied in cognitive and anxiolytic research, but they derive from different parent hormones and act through different pathways.

PT-141 (Bremelanotide): Melanocortin Receptor Research Guide
PT-141 (Bremelanotide) is a cyclic heptapeptide derived from Melanotan II, modified to remove MC1R activity and concentrate action at the central MC3R and MC4R receptors.

MOTS-C: Mitochondrial-Derived Peptide Research Guide
MOTS-C is a short peptide encoded within mitochondrial DNA. Discovered in 2015, it has become a central tool in research on AMPK signalling, metabolic homeostasis, and mitochondrial-nuclear crosstalk.
CG1: Long-Acting Amylin Analogue Research Guide
CG1 is a long-acting amylin analogue developed by the original developer, central to the clinical programme and co-formulated with semaglutide as CG1-Sema. Explore the mechanism, research data, and laboratory considerations.

IGF-1 LR3 Research Guide: Mechanism, Pharmacology, Laboratory Use
IGF-1 LR3 is a long-acting analogue of insulin-like growth factor 1 with an Arg substitution at position 3 and a 13-amino-acid N-terminal extension. Extended half-life and reduced IGFBP binding make it a widely used tool in cell proliferation and myogenesis research.

DSIP (Delta Sleep-Inducing Peptide): Evidence Review
DSIP is a 9-amino-acid peptide first isolated from rabbit cerebral venous blood in 1977. Despite five decades of research, its receptor and mechanism remain uncharacterised. A research guide with an honest review of the evidence base.

CJC-1295 With DAC vs Without DAC: Research Comparison
CJC-1295 exists in two distinct research forms. The 'no DAC' variant produces a pulsatile GH research model with a half-life of around 30 minutes. The 'DAC' variant binds albumin covalently and extends half-life to multiple days. The receptor mechanism is identical; the pharmacokinetics are not.

KPV: Anti-Inflammatory Tripeptide Research Guide
KPV is a tripeptide (lysine-proline-valine) derived from the C-terminal of alpha-MSH. Studied for anti-inflammatory effects in gastrointestinal research models, with NF-kB pathway modulation as the principal proposed mechanism.

Why GLOW Combines Three Repair Peptides in One Vial
GLOW is a pre-blended three-peptide research vial pairing BPC-157, TB-500, and GHK-Cu in a single lyophilised powder. A research guide to the component mechanisms and the co-administration rationale.

KLOW vs GLOW: What Adding KPV Changes
KLOW is a pre-blended four-peptide research vial extending GLOW by adding KPV, a tripeptide with NF-kB-modulating anti-inflammatory activity. A research guide to the four components and their combined application.

NAD+: Cellular Redox Cofactor Research Guide
NAD+ is the central cellular redox cofactor and a substrate for the sirtuin, PARP, and CD38 enzyme families. A research guide to mechanism, the documented decline with ageing, and laboratory applications.

Glutathione: Tripeptide Antioxidant Research Guide
Glutathione is the most abundant non-protein thiol in mammalian cells and the principal cytosolic antioxidant. A research guide to structure, biosynthesis, the GSH/GSSG redox indicator, and laboratory handling.