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Free delivery £50+ Royal Mail Tracked 24 Batch COA records Research use only
Contained research formats

Pens & refill cartridges

Browse the currently available pen-kit and refill formats in one dedicated catalogue. Prepared products are made to order from current batch-tracked components to minimise time in the prepared state before dispatch.

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🔥 Popular
Core Peptides Retatrutide 30mg pre-filled pen Core Peptides Retatrutide refill cartridge

Retatrutide Pre-Filled Pen

30mg complete pre-filled pen kit: filled 3ml cartridge, reusable pen and case
Made to order
Price
£120.00
Per pen
Research use only
View COA

A research peptide studied in preclinical models involving GLP-1, GIP, and glucagon receptor signalling pathways.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

🔥 Popular Core Peptides Retatrutide 30mg 3ml cartridge refill cartridge

Retatrutide Refill Cartridge

30mg 3ml cartridge refill cartridge
Made to order
Price
£80.00
Per cartridge
Research use only
View COA

A research peptide studied in preclinical models involving GLP-1, GIP, and glucagon receptor signalling pathways.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

🔥 Popular Core Peptides KLOW 80mg 3ml cartridge refill cartridge

KLOW Refill Cartridge

80mg 3ml cartridge refill cartridge
Made to order
Price
£80.00
Per cartridge
Research use only
COA not yet available

A research blend of GHK-Cu, KPV, TB-500 and BPC-157 for laboratory studies of cellular signalling, extracellular-matrix pathways and peptide combinations.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides Tirzepatide 120mg pre-filled cartridge with reusable black pen and case Core Peptides Tirzepatide 120mg refill cartridge

Tirzepatide Pre-Filled Pen

120mg complete pre-filled pen kit: filled 3ml cartridge, reusable pen and case
Made to order
Price
£180.00
Per pen
Research use only
View COA

A research peptide studied in preclinical models involving GLP-1 and GIP receptor signalling pathways.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides BPC157 and TB500 30mg Wolverine refill cartridge

BPC157+TB500 Wolverine Refill Cartridge

30mg total · 2 compounds: 15mg BPC-157 + 15mg TB-500 · 3ml refill cartridge
Made to order
Price
£90.00
Per cartridge
Research use only
View COA

A blend of BPC-157 and TB-500 for laboratory research into cell movement and tissue-repair pathways.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides Tirzepatide 120mg 3ml cartridge refill cartridge

Tirzepatide Refill Cartridge

120mg 3ml cartridge refill cartridge
Made to order
Price
£160.00
Per cartridge
Research use only
View COA

A research peptide studied in preclinical models involving GLP-1 and GIP receptor signalling pathways.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides BPC157 and TB500 30mg Wolverine pre-filled pen Core Peptides BPC157 and TB500 Wolverine refill cartridge

Wolverine Pre-Filled Pen

30mg total · 2 compounds: 15mg BPC-157 + 15mg TB-500 · pre-filled pen kit
Made to order
Price
£120.00
Per pen
Research use only
View COA

A blend of BPC-157 and TB-500 for laboratory research into cell movement and tissue-repair pathways.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides KLOW 80mg pre-filled pen Core Peptides KLOW refill cartridge

KLOW Pre-Filled Pen

80mg complete pre-filled pen kit: filled 3ml cartridge, reusable pen and case
Made to order
Price
£110.00
Per pen
Research use only
COA not yet available

A research blend of GHK-Cu, KPV, TB-500 and BPC-157 for laboratory studies of cellular signalling, extracellular-matrix pathways and peptide combinations.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides GHK-Cu 100mg 3ml cartridge refill cartridge

GHK-Cu Refill Cartridge

100mg 3ml cartridge refill cartridge
Made to order
Price
£39.00
Per cartridge
Research use only
View COA

A copper-binding peptide studied in laboratory models involving extracellular-matrix signalling, collagen-associated pathways, and analytical peptide comparison.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides GHK-Cu 100mg complete pre-filled pen kit with reusable pen and case Core Peptides GHK-Cu 100mg filled 3ml refill cartridge

GHK-Cu Pre-Filled Pen

100mg complete pre-filled pen kit: filled 3ml cartridge, reusable pen and case
Made to order
Price
£79.00
Per pen
Research use only
View COA

A copper-binding peptide studied in laboratory models involving extracellular-matrix signalling, collagen-associated pathways, and analytical peptide comparison.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides DSIP 10mg 3ml cartridge refill cartridge

DSIP Refill Cartridge

10mg 3ml cartridge refill cartridge
Made to order
Price
£53.00
Per cartridge
Research use only
COA not yet available

A research peptide commonly referenced in laboratory literature involving sleep-associated signalling, peptide stability, and analytical comparison models.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides Epithalon 10mg 3ml cartridge refill cartridge

Epithalon Refill Cartridge

10mg 3ml cartridge refill cartridge
Made to order
Price
£43.00
Per cartridge
Research use only
COA not yet available

A short synthetic peptide used in laboratory research involving cellular ageing pathways, telomere-associated models, and peptide stability.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides MOTS-c 10mg 3ml cartridge refill cartridge

MOTS-c Refill Cartridge

10mg 3ml cartridge refill cartridge
Made to order
Price
£38.00
Per cartridge
Research use only
View COA

A research peptide for laboratory studies involving mitochondrial signalling and peptide comparison.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides PT-141 10mg 3ml cartridge refill cartridge

PT-141 Refill Cartridge

10mg 3ml cartridge refill cartridge
Made to order
Price
£33.00
Per cartridge
Research use only
COA not yet available

A synthetic peptide referenced in laboratory studies involving melanocortin receptor signalling and controlled receptor-response models.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

Core Peptides Semax 10mg 3ml cartridge refill cartridge

Semax Refill Cartridge

10mg 3ml cartridge refill cartridge
Made to order
Price
£44.00
Per cartridge
Research use only
COA not yet available

A synthetic peptide used in laboratory research involving neuropeptide signalling, peptide stability, and analytical comparison models.

Pens & refills Free delivery £50+ Royal Mail Tracked 24 Research use only
Made after ordering. Prepared from current batch-tracked components to minimise time held pre-filled.
Product details
Preparation & storage

Made to order from batch-tracked components. Prepared presentations are not held pre-filled: preparation takes place after ordering to minimise time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt. Stability depends on the compound, preparation and storage conditions; retain the supplied batch documentation.

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Pens & refill cartridges

Why research organisations choose contained formats.

Pen kits and refill cartridges give laboratories and procurement teams a clearly identified, contained presentation that is easy to distinguish from powder-vial stock and straightforward to record within repeat research workflows.

Clear product identification

Each prepared cartridge is labelled by compound, stated strength and part number, helping teams keep the selected format aligned with the relevant batch and order record.

Consistent presentation

A defined 3ml cartridge format makes it easier to compare prepared presentations across documented laboratory workflows without confusing them with powder-vial inventory.

Reusable hardware

Once compatible reusable pen hardware is held by the organisation, refill cartridges provide a separate repeat-procurement format without purchasing another case and pen for every order.

Prepared only after ordering

Prepared pens and refill cartridges are made to order rather than held pre-filled. This minimises elapsed time in the prepared state before dispatch. Refrigerate at 2-8 C and protect from light on receipt; stability varies by compound, preparation and storage.

All pen and cartridge presentations are supplied strictly for lawful laboratory research. They are not intended for human or veterinary use, and no usage or medical guidance is provided.

Quality & research use

Batch-focused research supply.

Clear availability, careful wording, and documentation-first product pages.

COA documentation

View an available Certificate of Analysis on the product page. If a file is not available, contact us before ordering.

Batch records

Check the product, strength, format and batch documentation before you order.

Clear specifications

Product pages bring together strength, presentation, storage and available documentation.

Research supply

Products are supplied for lawful laboratory research only, not for human or veterinary use.

Order documents

Know what you’re ordering.

Available batch certificates can be viewed from product pages. Order-specific copies are retained securely in your account.

Account document access

Find the documents attached to your purchased products alongside your order history.

View your order documents

Before you order

Open a product to check its COA availability. Contact us if you need a document that is not shown.

Ask about a document

Batch-focused supply

Check the certificate against the product and batch it describes. Keep the order copy with your research records.

Research-use checks

Helpful checks before ordering.

Use these checks to keep research-use orders documented and separate from any human or veterinary use.

What is a COA?

A Certificate of Analysis is used to reference product identity, purity, and batch documentation supplied with a completed order.

Read batch and COA guide

Where is storage shown?

Storage details are shown on each product page with the product record and supporting documentation.

Read storage and handling guide

Before requesting supply

Confirm the product is suitable for lawful laboratory research and that the order is not for human or veterinary use.

Read delivery and tracking guide
View all research supply guides
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