C peptide

This is an important test used to help diagnose and measure levels of c-peptide in the blood.

Venous blood
1 tests included
5 days turnaround



About C peptide

What is C-peptide?

C-peptide is a substance produced by your pancreas. The pancreas is the organ responsible for insulin production where it is made in the beta cells. These cells release the same amount of c-peptide at the same time as insulin. C-peptide is present in the blood longer than insulin and is a useful marker of insulin production. Insulin production and your body’s ability to use it is altered in type 1 and type 2 diabetes, respectively.  

Why take this test?

This test measures levels of c-peptide in the blood and may be used to monitor insulin production in diabetic patients to assess treatment response or to investigate the cause of hypoglycaemia (low blood sugar).


What's tested

Amino Acids

How it works



Purchase your Kit

Just order a test online and get your kit delivered right to your door unless you are ordering a COVID-19 Fit to Fly test where you will be given appointment options to attend our clinics across the United Kingdom for a nose and throat swab PCR test at the checkout stage.



Take your test and post

Follow our simple instructions to take your sample and post back the enclosed prepaid envelope to our accredited lab for processing. We also offer home or workplace visits by a qualified nurse. For COVID-19 Fit to Fly tests you must attend one of our partner clinics for our trained collection officers to take your sample. You will then have the results emailed to you.



Get results directly to your dashboard

You will receive an email notification from our medical team when your results are available on your secure personalised health dashboard.