Research Peptides UK
Purity of ≥99%, with a certificate of analysis provided on request. Place an order before 2pm on a weekday for same-day shipping, tracked, in plain packaging, UK only.
- ≥99% purity Stated on every label
- Same-day dispatch Order before 2pm
- Tracked, plain packaging UK delivery
- Free over £75 Otherwise £4.95
Buy research peptides in the UK
Incrementin ships research peptides from inventory kept within the United Kingdom. Fifty compounds spanning the metabolic, repair, growth hormone, skin, cognitive, cellular and reproductive fields, offered as vials, pens, capsules and nasal sprays, ranging from 2mg to 500mg.
Each batch is tested to ≥99% purity by HPLC. The matching certificate of analysis for whatever batch reaches you can be supplied on request, keyed to the number shown on the label. Any order in before 2pm on a working day leaves the same day by tracked courier, inside plain outer packaging that says nothing about what is inside.
Every size lists its price both per unit and per milligram, since the rate per milligram is the single figure that lets one size be weighed against another cleanly.
Most asked for
Everything →Our twelve best sellers, ranked by how often the catalogue moves them. Each sits in UK stock, with a rate shown per milligram alongside the vial price.
NAD+
Retatrutide
Tirzepatide
BPC-157
GHK-Cu
TB-500
Ipamorelin
CJC-1295 DAC
MOTS-c
Melanotan 2
Tesamorelin
BPC-157 + TB-500
Metabolic & GLP-1
All 9 →Incretin receptor agonists together with the amylin analogue co-formulated alongside them. The three agonists are set apart by the number of receptors each engages, semaglutide one, tirzepatide two, retatrutide three. And that describes binding, not a ranking.
Retatrutide
Tirzepatide
MOTS-c
SLU-PP-332
Semaglutide
AOD-9604
Repair & Recovery
All 7 →Compounds whose published work lands in tissue repair and inflammation models. BPC-157 is the sole entry here to have reached human trials; the rest of the shelf is animal and in-vitro work.
BPC-157
TB-500
BPC-157 + TB-500
KPV
Thymosin Alpha-1
ARA-290
Growth Hormone Axis
All 4 →Two classes that act at two separate receptors, yet are routinely grouped as one category. GHRH analogues (tesamorelin, CJC-1295) engage the GHRH receptor; secretagogues (ipamorelin) engage the ghrelin receptor. One is no substitute for the other.
Skin & Pigment
All 4 →The copper tripeptide GHK-Cu, a cyclic melanocortin analogue, and the two multi-component blends assembled around them. KLOW is GLOW with KPV added, and that is the entire difference.
Cognitive & Sleep
All 2 →Two neuropeptides carrying unusual evidence bases. Semax holds pharmaceutical registration in Russia along with a literature seldom read in English; DSIP takes its name from the state it was isolated in rather than any confirmed mechanism.
Cellular & Longevity
All 3 →A coenzyme, a mitochondrially targeted peptide and a redox dye, filed together by what they act on rather than what they are built from. NAD+ is not a peptide at all.
Reproductive & Libido
All 2 →Two compounds on separate pathways: PT-141 at the melanocortin receptors, Kisspeptin-10 upstream of gonadotropin-releasing hormone.
Kisspeptin-10
PT-141
Stacks, blends and kits
All 15 →Several vials boxed together, two or more components already combined in a single vial, or one vial shipped with the items for preparing it alongside. Each option delivers something different, and the certificate that documents it changes to match, the difference explained.
BPC-157 Starter Kit
Sleep + Recovery Stack
GH Stack
Skin + Repair Stack
Semaglutide + Cagrilintide Blend
Wolverine Stack
Bacteriostatic water and supplies
All 4 →Sterile water that carries a benzyl alcohol preservative is what the bacteriostatic grade is, and that preservative is the reason a vial may be drawn from on more than one occasion. No such preservative sits in water for injection or in 0.9% saline.
Bacteriostatic Water
Alcohol Swabs
Insulin Syringes 1ml 30G
Pen Needles 32G
Why buy from Incrementin
Six commitments we stand behind, and every one can be verified instead of taken on trust.
Purity, stated and evidenced
HPLC testing is run on every compound, which is then labelled ≥99%. The certificate of analysis for your batch can be supplied on request against the number on the vial, tied to your own material rather than a folder of unrelated paperwork.
UK stock, UK dispatch
All of it leaves from inside the United Kingdom. There is no customs clearance, no import levy and no cross-border leg. In before 2pm on a working day and it goes out that day.
Priced per milligram
A 10mg vial and a 40mg vial amount to two rates rather than two prices. Each appears on every product page, so the comparison has been worked out for you.
Plain packaging
The outer packaging gives away nothing about the contents. Tracked from end to end.
Labelled properly
Each label carries the compound, strength, format, purity, a research-use statement and a batch number. Nothing gets decanted, mixed or relabelled.
No dosage guidance, anywhere
Each item here is an unlicensed research compound provided for laboratory research purposes alone. No dose, protocol, route or frequency is published by us, whether on the site or over email.
How ordering works
Put what you want in the basket and proceed to checkout. There is no need to register. An order confirmation lands with you straight away, with payment details to follow over email; nothing is charged through the site itself. As soon as payment clears, the order goes out on the next working-day cycle.
Shipping costs £4.95, and it is free above £75, tracked, UK only. Sealed items that have not been opened may be sent back inside 14 days; the returns page explains how the hygiene exemption applies to sealed vials.
Questions before you order
Are research peptides legal in the UK?
Compounds of this type are not controlled drugs, and it is lawful to supply them as laboratory materials. Supplying or advertising them for human use is not, which is the reason no page here shows a dose, a protocol or a medical claim. None of what we sell carries a UK marketing authorisation, and none is provided for human or veterinary use.
How quickly do you dispatch?
The same working day when the order is in before 2pm. Anything after that, or on a weekend or bank holiday, leaves on the following working day. Tracked, UK only.
Do you provide a certificate of analysis?
Yes, on request, covering the batch that was shipped to you; quote the batch number shown on the vial label. Ahead of ordering, let us know the compound and size and we will tell you what the certificate for current stock reports.
What purity are your peptides?
≥99%, as determined by HPLC. The figure describes composition: it reports what share of the material detected was the target compound. The full account of what it does and does not cover sits on the purity and testing page.
How much bacteriostatic water do I add?
Since the volume determines the concentration, it is a decision rather than a set number. Each product page includes a table pairing water volume with the resulting mg/ml for that compound’s own vial sizes.
Do you ship outside the UK?
No. United Kingdom only, and we will not forward to freight-forwarding addresses.
Is packaging discreet?
Yes. The outer packaging is plain, with nothing on it describing the contents.
Can you advise on dosage or how to use a compound?
No, and not over email either. Each item is provided as an unlicensed research compound for laboratory research purposes alone.