Research Guides
Research peptide guides
Clear, science-led explanations written for researchers. Every guide is framed for in-vitro laboratory research use only.
What are research peptides?
What peptides are, how they differ from proteins, why they are studied in the laboratory, and how to read a Certificate of Analysis.
7 min readAre peptides legal in the UK?
How research peptides sit within UK law in 2026 — the MHRA, the Human Medicines Regulations 2012, “research use only”, and importing. General information, not legal advice.
7 min readWhat is BPC-157?
The pentadecapeptide BPC-157 — its structure, the signalling pathways it is studied in, and how it appears across research compound sets.
6 min readWhat is CJC-1295?
CJC-1295 — a synthetic GHRH (1-29) analogue studied for growth-hormone-axis receptor signalling, and how it is often paired with ipamorelin in research.
6 min readWhat is Tesamorelin?
Tesamorelin — a stabilised GHRH (1-44) analogue studied for hypothalamic–pituitary signalling and growth-hormone regulation.
5 min readWhat is Ipamorelin?
Ipamorelin — a selective pentapeptide growth-hormone secretagogue (GHSR-1a agonist), often studied alongside GHRH analogues.
5 min readWhat is TB-500?
TB-500 — a synthetic thymosin beta-4 fragment studied for actin binding, cell migration and cytoskeletal organisation.
9 min readWhat is GHK-Cu peptide?
GHK-Cu — the copper peptide (glycyl-L-histidyl-L-lysine + Cu²⁺) studied in skin, collagen and extracellular-matrix research, and what the literature actually examines.
10 min readWhat is MOTS-c peptide?
MOTS-c — a peptide encoded by mitochondrial rather than nuclear DNA, and what that unusual origin means for metabolic and mitochondrial-signalling research.
5 min readWhat is KPV peptide?
KPV — the lysine-proline-valine tripeptide (α-MSH 11-13), why researchers use a three-residue fragment instead of the whole hormone, and what the literature examines.
5 min readWhat is PT-141?
PT-141 (bremelanotide) — a cyclic melanocortin agonist derived from Melanotan II, studied for MC4R-selective receptor signalling.
6 min readWhat is Melanotan II?
Melanotan II (MT-II) — a stabilised cyclic α-MSH analogue used as the broad-spectrum reference agonist in melanocortin receptor research.
6 min readIs NAD+ a peptide?
NAD+ is a central redox coenzyme — not a peptide. What it is, the enzymes and pathways it is studied in, and how it is supplied.
9 min readWhat is the Glow Stack?
A research compound set combining BPC-157, TB-500 and GHK-Cu (70mg total) — what each component is studied for and why they are presented together.
6 min readWhat is the Wolverine Stack?
A dual-peptide research compound set combining BPC-157 and TB-500 (20mg total) — what each component is studied for and why they are presented together.
5 min readWhat is KLOW peptide?
A four-peptide research compound set combining GHK-Cu, KPV, BPC-157 and TB-500 (80mg total) for multi-pathway laboratory study.
7 min readWhat is the Hulk Stack?
CJC-1295 with DAC and Ipamorelin as a research pair — what the DAC modification changes, and why two different receptors are studied together.
6 min readCJC-1295 and Ipamorelin: how the combination is studied
Why a GHRH analogue (CJC-1295) and a growth-hormone secretagogue (ipamorelin) are frequently studied together in growth-hormone-axis research.
5 min readBPC-157 vs TB-500: how they compare
How BPC-157 and TB-500 compare as research compounds: origin, the mechanisms each is studied for, and why they are often researched as a pair.
6 min readHow should research peptides be stored?
Lyophilised vs in-solution stability, why our pre-mixed vials are refrigerated rather than frozen, and the handling that keeps research peptides intact.
4 min readBacteriostatic water and peptide solution stability
What bacteriostatic water is, why simple aqueous solutions favour degradation, and how pH and buffers (e.g. Tris) affect the stability of peptides and redox cofactors in research.
6 min readHow the reusable pen works
A plain explanation of the reusable pen as a precise volumetric dispensing device: the click ratchet, the threaded rod, and the 0.01 mL-per-click mechanics.
4 min readWhat is a Certificate of Analysis (COA)?
What a COA is, what HPLC and mass spectrometry confirm, and how to read one when evaluating a research peptide supplier.
4 min readBuying research peptides in the UK: what to check
A practical checklist for choosing a UK research-peptide supplier: COAs, HPLC purity, cold-chain dispatch and transparency.
5 min readRetatrutide in the UK
Retatrutide is not an approved medicine anywhere in the world. What it is, where it sits in UK law, when it might be authorised, and why that matters for anyone encountering it online.
6 min read