Laboratory tests for bowel cancer screening, gut health and cellular ageing. Your sample is analysed in an ISO 15189-accredited European laboratory, and any abnormal ColoAlert result is reviewed by a GMC-registered GP at a CQC-registered clinic.
Free UK delivery in unbranded packaging. Results in about 10 days. No referral needed.
Screening tests are designed for people who feel well. They are not the right tool for investigating a symptom, and using one can delay a diagnosis that needs urgent attention. Contact your GP without delay if you have:
Your GP can refer you urgently on the NHS. That route is faster and more thorough than any home test.



Each one is analysed in an accredited laboratory and reported with guidance on what the result means and what to do next.
A stool test that looks for hidden blood and for tumour-associated DNA in the same sample. The DNA markers matter because a bowel tumour does not always bleed, and a test that looks only for blood can miss it. Recommended every three years from age 45 for people without symptoms.
Maps the bacteria living in your gut and how that balance relates to your diet and digestion. A wellness test rather than a medical diagnostic.
Measures NAD⁺ and NADH from a finger-prick blood spot. NAD falls with age. Your result is placed against a range for your age and sex, but there is no agreed clinical threshold, so treat it as a baseline rather than a diagnosis.

Posted free in plain packaging with nothing on the outside to say what it is. Inside: collection tubes, instructions and prepaid UN3373-compliant return packaging.
About five minutes, in your own bathroom, no preparation and no clinic visit. Register your kit online, then post it back the same day.
Sent securely in about 10 days, written so you can understand it. If a ColoAlert result is abnormal, a GP reviews it and talks it through with you.
Read the full process, including what can make a sample unusable
Most home testing companies email you a number and leave you to work out what it means. A result that suggests something is wrong is exactly the moment you need a clinician, not a PDF.
Abnormal ColoAlert results are reviewed by Dr Chun Tang through Northwest Health Ltd and discussed with you at no extra cost. Where further investigation is needed, usually a colonoscopy, you will be told clearly how to arrange it.
MY GUUT and NAD are wellness tests. Their results come as a written report and are not reviewed by a GP.
Bowel cancer is rising in people under 50. In this short video Dr Tang explains the red-flag symptoms that need a GP rather than a home test, why you should always return your free NHS screening kit, and where a private DNA test like ColoAlert fits.
Bowel cancer screening in the UK, explained
57 seconds, with on-screen captions.
Worth reading before you buy. We would rather you order the right test than the wrong one.

“Dr Chun Tang was very helpful even calling us to explain the results”
“It arrived quickly with very clear instructions for taking the samples”
“Chun was always available and answered all emails quickly and compassionately.”
“This test is very useful, as well as very well managed.”
Short excerpts from reviews on Trustpilot. Rating correct at October 2026.
Free delivery, results in about 10 days, and a doctor who reads anything abnormal.
Order ColoAlert