Lab-tested peptide vials, dispatched today.
Lyophilised research peptides held in UK stock, every lot tested by an independent UK laboratory, with the certificate of analysis published before the vial leaves the building. Same-day dispatch before 1pm.
Lot-matched · Sealed · UK stockFeatured peptides
Best sellerBPC-157
Body Protection Compound 157
TB-500
Thymosin Beta-4 fragment (Ac-LKKTETQ)
StackWolverine Stack
BPC-157 10 mg + TB-500 10 mg, two vials
GHK-Cu
Copper peptide GHK-Cu
MOTS-c
Mitochondrial open reading frame of the 12S rRNA-c
NewRetatrutide
GLP-1 / GIP / glucagon triple receptor agonist
By research area
Research peptides in the UK: what to check before you buy
The UK research-peptide market is large, unregulated and uneven. Most vendors resell imported lyophilised powder on the manufacturer's own paperwork, or on none. Four things separate a supplier worth using from one that is not: a certificate of analysis for the specific lot you receive, from a named independent laboratory, showing identity by mass spectrometry as well as purity by HPLC; stock physically held in the UK so that dispatch is same-day and nothing sits in customs; a registered UK company you can contact; and a clear research-use policy that the vendor actually follows. ALTA PEPTIDES was built to meet all four, and every product page shows the specification, the lot certificate and the storage conditions so you can check.
Testing you can read, not a badge on a label
The UK vial market runs on trust in strangers. We replace it with paperwork: a certificate for the lot in your hand, from a named laboratory, showing identity and purity.
Read before you order
How to reconstitute and store a peptide, how to read the certificate, where UK law sits, and what the research on each compound actually reports.
What are peptides? Amino acid chains, proteins, hormones and synthesis
The chemistry behind the word: what a peptide chain is, where the line with proteins sits, what peptide hormones do, and how a synthetic peptide is built one residue at a time.
Read → 18 September 2026 · 6 min readBacteriostatic water explained: what it is, how it differs from sterile water, and where to get it in the UK
The diluent every peptide laboratory keeps on the shelf: what the benzyl alcohol does, why the 28-day rule exists, when plain sterile water is the better choice, and what to look for when buying it in the UK.
Read → 18 September 2026 · 6 min readWhat is DSIP? The delta sleep-inducing peptide, its origin and what the research shows
A nine-residue peptide found in the blood of sleeping rabbits nearly fifty years ago, with a name that promises more than the evidence has delivered, and a genuinely unresolved question about where it comes from.
Read →Peptide calculator
Reconstitution arithmetic without the forum spreadsheets: vial amount, diluent volume, target amount, and the volume that gives you in millilitres and syringe units.