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Tirzepatide Pre-filled Pen 10mg Weight Loss

Double action, réglage au clic.

Tirzepatide without a single step of preparation. A dual GIP and GLP-1 agonist, delivered as a ready-to-use pen: the solution is already in the cartridge, the dose is set on a dial. No reconstitution, no bacteriostatic water, no syringe to hunt down at a pharmacy. 10 mg in 3 ml, which is four weeks at the documented starting step. Four needles are included: you inject the day it arrives, no pharmacy run. For research use.

99,00 €

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Only 3 left, flying off the shelf!

Next dispatch: Tuesday, September 8

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What the parcel contains

One sealed vial of Tirzepatide Pre-filled Pen 10mg, lyophilised, without individual labelling.

What you also need

Bacteriostatic water for reconstitution and 1 ml precision syringes graduated in 100 units, sold separately. The vial alone cannot be used as is.

Don't forget the essentials

Eau Bactériostatique

7,90 €

Cartouches 3 mlx59,90 €

Aiguilles Stylo Injecteurx1010,90 €

Tirzepatide is a dual GIP and GLP-1 receptor agonist, the most studied molecule of its generation after semaglutide. In a pre-filled pen it loses what puts people off research protocols: reconstitution, volume calculation and drawing up with a syringe. The solution is ready inside the cartridge and the dose is set on a dial.

Science

01
Mechanism of action

Tirzepatide activates two incretin receptors at once, GIP and GLP-1. This dual action sets it apart from GLP-1-only agonists and accounts for the scale of the metabolic effects reported in the literature. Retatrutide adds a third axis, the glucagon receptor. All three belong to the same family and follow the same step-up logic.

No references yet for this peptide — search PubMed for associated scientific literature.

The listed studies are provided for documentation and research purposes only. They do not constitute a therapeutic indication nor a recommendation for human use. This product is strictly for laboratory use only (RUO).

Lab workflow

03
Research protocols

Documented protocols start at 2.5 mg per week and step up, holding each level for several weeks before increasing: 2.5, then 5, 7.5, 10 mg. One weekly subcutaneous injection, same day each week. This pen holds 10 mg in 3 ml, so it covers four weeks at the starting step and two at 5 mg. It is the format that matches an entry cycle exactly. The dose reads off the dial, there are no syringe marks to count.

Reconstitution for this format (10 mg)Standard volumes used in laboratory settings

Water added	Concentration	Reading marker
1 ml	10 mg/ml	10 UI = 1 mg
2 ml	5 mg/ml	40 UI = 2 mg

The volume of water does not change the product, only its concentration. Introduce the water slowly along the vial wall, never directly onto the lyophilisate, then swirl without shaking. Markers given on a 1 ml syringe graduated in 100 units.

Asepsis

Disinfect surfaces and stoppers (70% alcohol).

Solvent

Draw the required volume of bacteriostatic water.

Introduction

Inject gently against the vial wall (avoid direct jet on powder).

Solubilization

Roll the vial gently. Do not shake vigorously (degradation risk).

Solution storageOnce reconstituted: 2-8°C (refrigerator).

WarningTheoretical tool for chemical handling. Does not constitute medical advice.

I open the dilution calculator

What is normal on arrivalThe observations that worry customers, and are not defects

The amount of powder looks tiny. A lyophilisate takes up a few millimetres at the bottom of the vial, sometimes just a translucent film. The stated weight is there.
The powder is compact, stuck to the wall or to the stopper. Transport moves the freeze-dried cake around. It changes nothing to reconstitution.
The vial carries no individual label. That is our standard packaging, not a downgraded vial.
After reconstitution, deposits or filaments appear. This is common, especially with small molecules. Let it settle and roll the vial between your palms, never shake it.
The parcel is plain. Nothing on the outside indicates the contents or the brand name.

What is not normal: a cracked vial, an uncrimped cap or a stopper that moves, powder that has liquefied or changed colour. In those specific cases, write to us with a photo and we take the vial back.

Handling

04Storage & handling

Between 2 and 8 degrees, refrigerated, away from light, and never frozen. Unlike a lyophilised powder, a pre-filled pen already holds a solution: the cold chain matters from delivery onwards. A few days in transit at ambient temperature is accounted for by this type of formulation, but the pen goes into the fridge as soon as the parcel is opened. Do not fit the needle before injecting, and change it every time.

01Do I need to add bacteriostatic water?

No, and that is the whole point of this format. The solution is already prepared inside the cartridge. Bacteriostatic water is only needed for vials of lyophilised powder.

02How many weeks does one pen last?

Four weeks at the 2.5 mg starting step, two weeks at 5 mg. That is a full entry cycle in a single pen.

03Are needles included?

Four needles are included, enough for a starting cycle. Beyond that, refills are ordered separately in packs of ten.

04How is this different from the Tirzepatide vial?

The molecule is identical. The pen removes reconstitution, volume maths and buying a syringe; the vial leaves you in control of the concentration.

05Can it be kept out of the fridge?

A few days in transit at ambient temperature is accounted for, but the pen must go into the fridge on arrival and stay there between injections.

06Tirzepatide or Retatrutide?

Two distinct molecules. Tirzepatide acts on two receptors, Retatrutide on three. They are not interchangeable and are not dosed at the same values.

07How do I set the dose?

On the dial, as on a pharmacy pen. No syringe marks to count, no volume to convert.

Benchmark

Similar peptides

Against the 10 mg Tirzepatide vial, the pen removes three steps and two purchases: no bacteriostatic water, no syringe, no concentration maths. The vial remains the choice for anyone who wants to set their own concentration or split it differently. Against Retatrutide in pen form, Tirzepatide acts on two receptors instead of three and is dosed in higher milligram steps: they are two distinct molecules, not two strengths of the same product.

Full guide: Tirzepatide — mechanism, studies, dose comparison

Metabolism

Asepsis

Solvent

Introduction

Solubilization

Complementary reagents