Overview
Harley Street Longevity Clinic is a doctor led practice at 14 Devonshire Place, London, offering DNA, epigenetic and gut microbiome testing alongside regenerative treatments, nutrition and lifestyle advice. It was founded jointly by Dr Aamer Khan, who worked in the NHS, including general practice, for 24 years. Patients start with a medical history, a physical examination and, where needed, DNA testing.
- What it sells
- 1 consultation; 1 single test
- Doctors
- 2 named, including Dr Aamer Khan, Co-founder
- Reviews
- Google: none found
- Trustpilot: none found
- Doctify: none found
- Checked 21st October 2026
Sources: harleystlongevity.com, contact, checked 19th October 2026; harleystlongevity.com, about, checked 21st October 2026.
What you get for the money
DNA testing, epigenetic testing, gut and microbiome testing, functional health.
IncludedIf you choose itNot mentioned
- Genes and age
- “With just a simple cheek swab or saliva sample, you can gain insights that were once the domain of specialised laboratories”
Source: harleystlongevity.com, dna testing, checked 21st October 2026.
Is it worth it?
This page does not answer that. Here is what the NHS does for free, and what those who set screening policy say.
- NHS Health Check
- “a free check-up of the health of your heart and blood vessels”
- Who can have it
- People “aged 40 to 74 who do not have” certain conditions, such as heart disease or diabetes, or who already take medicines like statins
- How often
- Every 5 years, by invitation from your GP or local council
- What it checks
- Height, weight, waist, blood pressure, cholesterol and possibly blood sugar, in about 20 to 30 minutes
Source: nhs.uk, NHS Health Check, page reviewed 14th August 2023, checked 20th October 2026.
UK National Screening Committee
“Screening is not for people who have symptoms. People who have symptoms should always consult their GP.”
GOV.UK, published 21st November 2023
NHS
“Private companies offer a range of screening tests that you have to pay for.”
nhs.uk, NHS screening, reviewed 30th July 2024
Could it find something that isn’t there?
UK National Screening Committee
“Screening tests are not 100% accurate and do not provide a diagnosis.”
GOV.UK, published 21st November 2023
UK National Screening Committee
“False negative or false positive results can be harmful, as someone may either be falsely reassured or unnecessarily worried.”
GOV.UK, principles of screening, updated 11th July 2025
After your results
Royal College of General Practitioners
“the organisation initiating the screening should not assume that general practitioners will deal with the results”
rcgp.org.uk, screening, October 2019
Doctors
Every doctor the clinic names, with their entry on the medical register where one was found.
- Dr Aamer Khan
- Co-founder
- On the GMC register with a licence to practise, and on the GP Register. GMC 3128431
- Dr Mike Tee
- Doctor
- On the GMC register with a licence to practise, and on the GP Register. GMC 3118018
Sources: harleystlongevity.com, about, checked 19th October 2026; the GMC register entries linked above, checked 20th October 2026.
What it tells you
The same questions for every clinic. What it says on its own pages, and what it does not.
StatedNot stated
- PricesNot stated
- What each package includesStated
- How long a visit takesNot stated
- How long results takeNot stated
- Who explains your resultsNot stated
- What happens if something is foundNot stated
- Who pays for follow upNot stated
- Whether results go to your GPNot stated
- Insurance or employer coverNot stated
- Its doctors’ namesStated: 2 doctors
From the clinic’s pages listed under Sources, checked 21st October 2026.
Details
Address
14 Devonshire Place, London W1G 6HX; second site Ballingdon Hall, Ballingdon Hill, Sudbury, Suffolk CO10 7LH, W1G 6HX; CO10 7LH
Source: harleystlongevity.com, contact, checked 19th October 2026.
Sources
- The clinic’s site
- harleystlongevity.com
- Registers
- The General Medical Council
- Checked
- 19th, 20th and 21st October 2026