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Lab Tested · Batch Certified

Insulin Pen Needles 100x 4mm 31G

4mm · 31G · 100 pack

£10.00

Single-use 1ml insulin syringes with a fine fixed needle and clear graduations. Sterile and individually sealed.

Prepared fresh to order. Never pre-made.

Every pen is reconstituted only after your order is placed, then carefully packaged in a premium hard-shell case and supplied with sterile needles.

For laboratory research use only. Not for human consumption. You must be 18 or over to order.

Lab Details

Box of 100 sterile pen needles, 4mm 31G, individually sealed.

✓ Passed

Certificate Of Analysis

Product

Insulin Pen Needles 100x 4mm 31G

Strength

4mm · 31G · 100 pack

Batch

On your vial label

Method

HPLC and Mass Spec

Tested By

Janoshik Analytical

Purity

99%+

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Every Batch Independently Tested

Before any batch goes on sale, a sample is sent to Janoshik Analytical, an independent lab, to check what it is, how pure it is and how much is in each vial. Every product links to the certificate for the batch we are sending out, and the batch number on that certificate matches the label on your order.

Insulin Pen Needles 100x 4mm 31G

Lab Details

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