Same-day dispatch on orders placed before 2pm · Tracked UK delivery
Incrementin UK Peptides
Basket 0
Semaglutide vial, Incrementin
Metabolic & GLP-1

Buy Semaglutide UK

A GLP-1 receptor agonist offered in 2mg, 5mg and 10mg vials. Research use only.

from £9.993 options

  • In stock Ships from the UK
  • Same-day dispatch Order before 2pm
  • Tracked delivery Free over £75
  • Certificate of analysis On request

Semaglutide is held in stock at incrementins.co.uk and dispatched from within the United Kingdom, priced from £9.99 for the 2mg vial. Offered across 3 strengths, 2mg, 5mg, 10mg, as vial. Place an order before 2pm on a working day and it leaves the same day, tracked, inside plain outer packaging.

Since the parcel originates within the United Kingdom, there is nothing to clear through customs, no duty on import, and no consignment stuck at a border awaiting release. Each batch is tested to ≥99% purity by HPLC, and the certificate for the exact lot you are sent can be requested against the number shown on the label.

Shipping runs £4.95, free over £75, tracked end to end. See how ordering works.

Choose your Semaglutide

3 options

Semaglutide is also supplied in

All combinations →
Semaglutide + Cagrilintide Blend Semaglutide + Cagrilintide Blend
5mg/5mg £46.99

More in Metabolic & GLP-1

See all →
Retatrutide Retatrutide
£28.99
Tirzepatide Tirzepatide
£25.99
MOTS-c MOTS-c
£15.99
SLU-PP-332 SLU-PP-332
£29.99
AOD-9604 AOD-9604
£17.99
5-Amino-1MQ 5-Amino-1MQ
£35.99

What is Semaglutide?

Semaglutide is a GLP-1 receptor agonist. A compound acting at a single receptor. Provided here as an unlicensed research compound.

Specification

ReceptorGLP-1
Purity≥99% by HPLC
Vial strengths2mg, 5mg, 10mg
Vial stateLyophilised powder
CertificateOn request, against the batch number

What research has been published?

Semaglutide holds the longest completed clinical record among the three incretin agonists on this site. It serves as the comparator arm in SURMOUNT-5, the phase 3b head-to-head with tirzepatide (doi:10.1056/NEJMoa2416394).

Where and how to buy Semaglutide in the UK

How do you order?

Pick a strength from the list above, drop it into your basket and proceed to checkout. Setting up an account is not needed. A confirmation lands straight away and the payment details follow by email; no charge is taken on the site itself.

Why does UK stock matter?

Order Semaglutide here and it departs from within the United Kingdom. Nothing clears customs, no charge is levied on import and there is no overseas leg to wait through; an order in before 2pm on a working day goes out the same day on a tracked service, and the outer packaging says nothing about what is inside.

What arrives in the box?

Purity≥99%, by HPLC
LabellingCompound, strength, format, purity, research-use statement and a batch number
Certificate of analysisOn request, matched to your batch number
DeliveryTracked, UK only. £4.95, free over £75
Returns14 days on unopened, sealed items, terms

Reconstituting Semaglutide

Semaglutide arrives as lyophilised powder. Adding bacteriostatic water brings it into solution, and the volume you add fixes the concentration. The vial holds what the label states whatever volume you choose.

1.00 mg/mlConcentration
0.100 mlHolds 0.1mg
10.0 unitsOn a U-100 syringe
10 mcgPer unit of that syringe

Concentrations and volumes only. This site puts out no dosage, protocol or administration guidance, and no figure here is any of those.

Preset for 2mg and 2ml. Change either and the figures follow. The full reconstitution calculator handles syringe units, which water to reach for and how long a made-up vial lasts.

Concentration by vial size and water added
Vial+ 1ml+ 2ml+ 3ml+ 5ml
2mg 2 mg/ml1 mg/ml0.67 mg/ml0.4 mg/ml
5mg 5 mg/ml2.5 mg/ml1.67 mg/ml1 mg/ml
10mg 10 mg/ml5 mg/ml3.33 mg/ml2 mg/ml

Worked example: a 2mg vial with 2ml of bacteriostatic water comes to 1 mg/ml. Divide the milligrams on the label by the millilitres you add. These are concentrations, not doses; this site puts out no dosage, protocol or administration guidance.

How should it be handled?

  • Let a cold vial warm to room temperature before you add anything.
  • Wipe the stopper with an alcohol swab ahead of each entry.
  • Send the water down the inside wall of the vial rather than onto the powder.
  • Swirl gently. Do not shake, since foaming is protein damage you can see.
  • Give the cake several minutes to dissolve. A finished solution is clear.

Storing Semaglutide

Sealed vialCool, dry and away from direct light. A freezer suits long holding.
Once reconstitutedRefrigerated, upright, out of light. Never freeze a solution.

How long does it keep?

General figures for a lyophilised peptide
Stored asKeeps for
Sealed, frozen at −20 °CYears, the longest-lasting state for a lyophilised peptide
Sealed, refrigerated at 2–8 °CMonths
Sealed, at room temperatureWeeks. Fine for transit, not for keeping
Reconstituted, refrigeratedWeeks rather than months. Around four weeks is the figure usually worked to with bacteriostatic water, which is what the preservative is there for
Reconstituted, frozenNot advised, ice crystals damage peptides, and repeated freeze–thaw cycles add to it

These are the general figures for lyophilised peptides, not a tested result for one particular batch. Dry and cold is what draws it out; water, warmth, light and agitation are what cut it short. The batch certificate of analysis can be requested.

Semaglutide is provided as an unlicensed research compound, for laboratory research use only. No UK marketing authorisation covers it, it is not a licensed medicine, and it is not offered for human use, veterinary use or use in food.

Compounds of this sort are not controlled drugs, and selling them as laboratory materials breaks no law. Offering or promoting them for human use is the part that does, and that is why not one page on this site sets out a dose, a protocol, a route, a frequency or a medical claim. Nor will we hand one over by email.

A number of compounds in this range share a molecule with a licensed medicine marketed under a brand name. The authorisation attaches to that finished product and travels no further than it, not to the molecule. Full terms.

Research use only. Incrementin provides compounds for use in laboratory research. None of what we sell is a licensed medicine, we do not operate as a pharmacy, and we put out no dosage, protocol or administration guidance. Not for use in humans or animals, and not for use in food.

Semaglutide questions

Is this the same as the brand-name medicine?

The molecule is the same. What we supply carries no marketing authorisation and is not dispensed through a pharmacy.

How many receptors does semaglutide act on?

One, GLP-1. Tirzepatide acts at two, retatrutide at three.

What sizes are available?

2mg, 5mg and 10mg vials.

What's better Semaglutide or retatrutide?

Semaglutide is provided here as an unlicensed research compound for laboratory research use only, at ≥99% purity determined by HPLC. Its specification and the published research standing behind it are laid out on this page.

Where can I buy Semaglutide in the UK?

Semaglutide is available to buy in the UK from incrementins.co.uk, from £9.99, 3 strengths, 2mg to 10mg, as vials. Stored and sent out from here, so the cold chain stays short and nothing sits in an unrefrigerated container waiting on paperwork. The larger sizes come out cheaper per milligram, £2.60/mg at the best rate against £5.00/mg at the smallest, and each size displays its own figure. It arrives as lyophilised powder, so you fix the concentration when you reconstitute it. It also features in 1 other product on the site. Order before 2pm on a working day and it leaves the same day, tracked, in plain packaging. Every batch is third-party tested to ≥99% purity by HPLC with a certificate available for your batch, see how to order.

Is Semaglutide cheaper than tirzepatide?

From £9.99 for the 2mg, £5.00 per mg. That is 3 options, each priced on its own with its own rate per milligram. Delivery is £4.95, free over £75.

How much bacteriostatic water do I add to Semaglutide?

The volume fixes the concentration, so it is a choice rather than a set figure. For the 2mg vial: 1ml gives 2 mg/ml, 2ml gives 1 mg/ml, 3ml gives 0.67 mg/ml. The vial holds 2mg whatever volume you add. This is a concentration, not a dose.

How should Semaglutide be stored?

Sealed as lyophilised powder it lasts for years at −20 °C, months refrigerated at 2–8 °C, and weeks at room temperature; dry and cold is what draws it out. Once reconstituted it belongs in a fridge, upright, and is usually worked to around four weeks with bacteriostatic water. Never freeze a solution: ice crystals damage peptides and repeated freeze–thaw cycles make it worse.

What purity is your Semaglutide, and can I see a certificate?

≥99%, determined by HPLC. A certificate of analysis for the batch you were sent can be requested against the batch number printed on the label, and we can let you know what current stock shows before you order.