The DL8L Well Person Profile is a broad general health check combining a 24-parameter biochemistry panel and full blood count with thyroid, blood sugar, iron and vitamin D testing, alongside HDL, LDL and non-HDL cholesterol. It suits anyone wanting a wide baseline check on general health rather than testing for one specific concern. The profile costs £218.75 plus a £50 blood-draw fee, with results back in 1 day. You can walk in or book online at 117a Harley Street, seven days a week, with no GP referral needed.
People request this profile as an annual check-in on general health, particularly when they haven't had bloods done in a while and want a broad picture rather than a single answer.
It's also useful if you've had vague symptoms such as tiredness, low mood or weight change that could stem from several different systems, thyroid, blood sugar, iron or vitamin D among them.
Some people order it ahead of a lifestyle change, such as starting a new exercise programme or diet, to have a baseline to compare against later.
Most people do not need to fast for this profile, and you can eat and drink normally beforehand unless your doctor has told you otherwise. If you're unsure whether any part of the panel needs fasting, ask when you book, and let the phlebotomist know if you've eaten within the last few hours.
A result outside what's expected on any part of this profile isn't a diagnosis by itself, whether that's a thyroid marker, blood count, cholesterol reading or vitamin D level; each needs to be read in the context of your symptoms, history and the other results alongside it.
Low iron stores or vitamin D are common and often straightforward to address, while an abnormal blood count or liver marker may need further investigation. Book a doctor's appointment to go through the report properly, especially if several markers sit outside range together.
If you want these markers alongside a doctor's examination and a wider health assessment, compare the Full Body MOT health check.
Written by Mr Stephen Lingam. Reviewed by Dr Mohammad Bakhtiar (GMC 4694470) on 24/09/2026.
It signals that the profile is designed as a general wellbeing check rather than for one specific symptom, covering several body systems in a single blood draw.
Most people do not need to fast, though it's worth checking when you book, since some elements of a broad biochemistry panel are best measured fasting.
Results are back within 1 day.
Yes, no GP referral is needed. You can walk in or book online at 117a Harley Street, seven days a week.