Buy Peptides UK
Research peptides on sale in the UK: fifty compounds stocked and dispatched from here, as vials, pens, capsules and nasal sprays, ≥99% purity, certificate of analysis on request, same-day dispatch before 2pm.
Incrementin is a UK source for research peptides. Every item on this page sits in British stock, so an order in before 2pm on a working day departs the same day on a tracked service, no customs clearance, no import charge and no parcel waiting at a border.
Fifty compounds spanning seven research areas, across ninety-one sizes and formats, each priced per unit and per milligram. Every batch is assayed by HPLC at ≥99% purity, and the certificate for the exact batch you are sent can be requested against the number printed on the label. See how ordering works.
Metabolic & GLP-1
Shelf →
Retatrutide
Tirzepatide
MOTS-c
SLU-PP-332
Semaglutide
AOD-9604
5-Amino-1MQ
Cagrilintide
Tesofensine
Repair & Recovery
Shelf →
BPC-157
TB-500
BPC-157 + TB-500
KPV
Thymosin Alpha-1
ARA-290
VIP
Growth Hormone Axis
Shelf →Skin & Pigment
Shelf →Cognitive & Sleep
Shelf →Cellular & Longevity
Shelf →Reproductive & Libido
Shelf →
Kisspeptin-10
PT-141
Stacks, Blends & Kits
Shelf →
BPC-157 Starter Kit
Dual Agonist Stack
GH Stack
Metabolic Stack
Pen Starter Kit
Recomp Stack
Recovery Stack
Retatrutide + Cagrilintide Blend
Retatrutide Starter Kit
Semaglutide + Cagrilintide Blend
Skin + Repair Stack
Sleep + Recovery Stack
Tirzepatide + Cagrilintide Blend
Tirzepatide Starter Kit
Wolverine Stack
Lab Supplies
Shelf →
Bacteriostatic Water
Alcohol Swabs
Insulin Syringes 1ml 30G
Pen Needles 32G
Choosing a peptide supplier in the UK
The questions worth putting are the same no matter who you buy from, and every one has an answer you can get before you order. What to check in a UK peptide supplier runs through each, including where we are a poor fit.
| Ask | Here |
|---|---|
| Where does it ship from? | From inside the United Kingdom. Nothing has to cross a border to reach you, so there is no clearance step and no import charge. |
| What purity, and measured how? | ≥99%, determined by HPLC, given on every label beside a batch number. |
| Can I see the certificate? | On request, keyed to the batch number printed on the vial you were sent, not a sample off a different lot. |
| Is the price per vial or per milligram? | Both appear. Every size shows its own per-milligram rate, so the sizes line up directly. |
| What arrives? | Lyophilised powder in a sealed vial, or a pre-filled pen, capsules or a spray where the compound is sold that way. |
| What is it for? | Laboratory research. None of it is a licensed medicine, we are not a pharmacy, and no dosage or protocol guidance is published. |
What are research peptides?
A peptide is a short string of amino acids linked by peptide bonds. Once the chain stretches beyond roughly fifty residues the usual term switches to protein, though that line is a convention more than a rule. The compounds on this site span from three residues (KPV) up to twenty-eight (Thymosin Alpha-1).
Not every item under that heading is strictly a peptide, and this shop states as much rather than papering over it. NAD+ is a coenzyme assembled from two nucleotides. 5-Amino-1MQ and SLU-PP-332 are small molecules. Methylene blue is a phenothiazine dye. They are held here because the research literature files them alongside the peptides, not because the chemistry matches.
"Research" names the supply category, not a marketing slogan. These are unlicensed compounds provided for laboratory work. Not one carries a UK marketing authorisation, none is a licensed medicine, and none is provided for human or veterinary use.
What formats do research peptides come in?
| Format | What arrives | Preparation | Storage |
|---|---|---|---|
| Lyophilised vial | Freeze-dried powder under vacuum | Reconstitute with bacteriostatic water | Years frozen, months refrigerated |
| Pen | Pre-filled, already in solution | None | Refrigerated from arrival |
| Capsules | Finished solid form | None | Cool, dry, sealed |
| Nasal spray | Ready-to-use solution | None | Refrigerated from arrival |
The vial is the standard choice across this catalogue, and the reason is chemistry rather than commerce: freeze-drying pulls out the water that degradation reactions depend on, which is what makes a peptide shippable to begin with. The other three formats show up wherever the preparation step is worth taking away.
How do you buy research peptides in the UK?
From a supplier that holds UK stock, the one factor that settles whether an order lands in two days or three weeks. An order sent from outside the UK passes through customs, may pick up an import charge and a handling fee, and can be held or seized at the border. Nothing ordered here has to cross one.
| Account | Not needed, just name, address and email at checkout |
|---|---|
| Dispatch | Same working day before 2pm, next working day after that |
| Delivery | Tracked, UK only. £4.95, free over £75 |
| Packaging | Plain outer packaging; nothing on it names the contents |
| Payment | Details emailed once the order goes through; no charge is taken on the site |
| Returns | 14 days on unopened, sealed items |
What does the published research on these compounds cover?
It ranges widely, and the honest reading is that the evidence behind these compounds is patchy. A few have reached human trials; most have not. Set out by research area, with the study model named:
| Area | Strongest published evidence |
|---|---|
| Metabolic and GLP-1 | Phase 3 human trials for semaglutide and tirzepatide, among them a head-to-head (doi:10.1056/NEJMoa2416394). Retatrutide sits at phase 2 (PMID 37366315). |
| Repair and recovery | BPC-157 carries human trials in gastrointestinal medicine (PMID 17186181); the rest of the shelf is rodent and in-vitro work. |
| Growth hormone axis | Tesamorelin has a meta-analysis of five randomised controlled trials (PMID 41545261); CJC-1295 a randomised placebo-controlled trial in healthy adults (PMID 16352683). |
| Skin and pigment | GHK-Cu rests on review and gene-expression work (PMID 29986520) rather than clinical trials. |
| Cognitive and sleep | Semax has rat BDNF work (PMID 14556513) plus one non-randomised 110-patient study. |
| Reproductive | Kisspeptin-10 has human studies in healthy volunteers (PMID 21976724). |
Each compound page holds its own reference list, sorted by study model, every paper linked so the source can be read. Where a compound's record is thin, the page says as much.
These set out what studies looked at. None of it asserts an effect in a person, and this site puts out no dosage, protocol, route or frequency.
How are research peptides prepared?
A lyophilised vial turns up as dry powder and is made up with bacteriostatic water, sterile water carrying added benzyl alcohol, the preservative being what lets a vial be entered more than once. The volume you add fixes the concentration and nothing more: the vial holds whatever the label states regardless.
| Water added | Concentration |
|---|---|
| 1 ml | 10 mg/ml |
| 2 ml | 5 mg/ml |
| 3 ml | 3.33 mg/ml |
| 5 ml | 2 mg/ml |
Each product page carries the same table worked through for that compound's own vial sizes. Let a cold vial warm to room temperature first, swab the stopper, send the water down the inside wall rather than straight onto the powder, and swirl, never shake, since the foam it throws up is denatured protein you can see.
How should research peptides be stored?
| Stored as | Keeps for |
|---|---|
| Sealed, frozen at −20 °C | Years |
| Sealed, refrigerated at 2–8 °C | Months |
| Sealed, room temperature | Weeks, fine for transit, not for storage |
| Reconstituted, refrigerated | Weeks; around four is the figure usually worked to |
| Reconstituted, frozen | Not recommended, ice crystals damage peptides |
Dry and cold draw it out; water, warmth, light and agitation cut it short. Temperature cycling harms it more than a steady warm shelf does, so settle on a spot and leave it there.
Are research peptides legal in the UK?
The compounds sold here are not controlled drugs, and selling them as laboratory materials breaks no law. What does break the law is offering or marketing them for human use, which falls under the Human Medicines Regulations 2012, and that is why no page on this site carries a dose, a protocol, a route, a frequency or a medical claim, and why we will not provide one by email.
A number of compounds here share a molecule with a licensed medicine marketed under a brand name. A marketing authorisation belongs to that finished product. A particular manufacturer, formulation, presentation and approved use. And it does not carry over to a molecule. Full terms.
Research peptide questions
Where can I buy research peptides in the UK?
Here. Incrementin keeps fifty compounds in UK stock, sent out the same working day on orders in before 2pm, tracked, in plain packaging. Since nothing travels from overseas, there is no customs clearance, no import charge and no chance of a parcel being held at the border.
What purity are your research peptides?
≥99%, determined by HPLC, with a certificate of analysis for your batch available on request against the number printed on the label.
How quickly do you dispatch?
The same working day on orders before 2pm; the next working day after that, over weekends and on bank holidays. Tracked, UK only.
Do you ship outside the UK?
No. United Kingdom alone, and we will not forward to freight-forwarding addresses.
How much bacteriostatic water do I add to a vial?
The volume fixes the concentration, so it is a choice rather than a set figure. A 10mg vial with 2ml gives 5 mg/ml; with 1ml it gives 10 mg/ml. Each product page carries the table worked through for that compound's own sizes.
How long do research peptides keep?
As sealed lyophilised powder: years frozen at −20 °C, months refrigerated, weeks at room temperature. Once made up and refrigerated, weeks rather than months. Do not freeze a solution.
Do you publish dosage information?
No, and we will not provide it by email. Every item here is an unlicensed research compound for laboratory research use only. What we do put out is the reconstitution arithmetic and the storage conditions, which are facts about a solution and a material.












