Doctor led blood testing from Kingston
Hair, Skin and Nails Blood Tests UK
A considered collection of home blood tests for hair shedding, brittle nails, dry skin and related iron, thyroid and vitamin questions.
Visible changes in hair, skin and nails are often non specific. They may relate to iron status, thyroid function, nutritional intake, stress, illness, medicines, hormones, dermatological conditions or normal life stage changes. Testing can provide selected laboratory context, but it cannot diagnose every scalp, skin or nail condition.
Choose according to the pattern
The visible change is only one part of the assessment
Diffuse shedding after illness, childbirth, rapid weight change or stress differs from a widening parting, smooth bald patches, a painful inflamed scalp or scarring. Brittle nails also differ from nail thickening, discolouration or destruction. A blood test may be useful for selected internal factors, but the pattern can determine whether examination is more important.
Choose the smallest panel that answers the question created by your symptoms. A broader test is reasonable only when the full set of markers is relevant.
Iron status and thyroid function may be considered where the history supports them. Timing after illness, stress, birth or weight change also matters.
Thyroid dysfunction is one possible contributor, but environment, eczema, products, medicines and ageing are also common explanations.
Blood results cannot identify fungal infection, psoriasis, eczema, repeated trauma or every structural nail disorder.
Iron, B12, folate or vitamin D may be relevant depending on food choices, absorption, medicines and supplement use.
These can reduce iron stores. The cause of blood loss matters as much as the laboratory result.
Pregnancy, the months after birth, menopause and androgen related hair change may require a different clinical pathway.
Sudden patchy loss, scalp pain, inflammation, scaling with hair breakage, scarring, nail destruction, severe fatigue, breathlessness, heavy bleeding, unexplained weight loss or a significant deterioration in general health should not be managed with a postal test alone.
Laboratory context without beauty promises
Choose biomarkers, not a marketing claim
Hair, skin and nail supplements are widely promoted, but an appearance concern does not prove a deficiency. High dose products may be unnecessary, may cause harm and may affect laboratory tests. A measured approach starts with the pattern, the health history and a clear reason for testing.
It’s Me & You Clinic collection
Home blood tests for hair, skin and nail concerns
These six product routes preserve the intended scope of the supplied collection while using It’s Me & You Clinic links, imagery and fully rewritten editorial guidance.
Iron stores and transport
Iron Profile Blood Test Home Kit UK
A focused route where diffuse shedding, fatigue, pallor, heavy periods, blood loss or restricted dietary intake creates a clear iron question.
- Focus
- Ferritin and related iron measurements listed on the product page
- May be relevant when
- Diffuse shedding with possible depleted iron stores
- Important limit
- Ferritin can rise with inflammation and a low result does not diagnose the cause of hair loss
TSH, T3 and T4
Thyroid Function Blood Test Home Kit UK
A focused thyroid route when hair, skin or nail changes occur with altered energy, temperature sensitivity, bowel change, palpitations or weight change.
- Focus
- TSH, T3 and T4 as described on the product page
- May be relevant when
- A defined thyroid function question
- Important limit
- Medicines, pregnancy, illness and biotin may affect interpretation
Hormones and antibody context
Advanced Thyroid Blood Test Home Kit UK
A broader thyroid option for people who specifically need the additional thyroid antibody information listed on the individual product page.
- Focus
- Thyroid function markers with the listed antibody measurements
- May be relevant when
- A broader thyroid question where antibody context is relevant
- Important limit
- Antibodies do not explain every symptom and a larger panel is not automatically more useful
B12, folate and vitamin D
Essential Vitamins Blood Test Home Kit UK
A concise vitamin panel where diet, absorption, medicine use, previous deficiency or limited sun exposure creates a defined nutritional question.
- Focus
- Vitamin B12, folate and vitamin D
- May be relevant when
- A focused nutritional question rather than a broad wellness screen
- Important limit
- These three markers do not provide a complete hair, skin or nail assessment
Focused vitamin D status
Vitamin D Blood Test Home Kit UK
A single marker option when vitamin D is the defined question, including previous deficiency, low sun exposure or clinician advised monitoring.
- Focus
- 25 hydroxyvitamin D
- May be relevant when
- A specific vitamin D question
- Important limit
- Vitamin D status does not diagnose the cause of hair shedding, brittle nails or dry skin
Broader nutritional overview
Vitamin Deficiency Blood Test Home Kit UK
A wider vitamin, mineral and iron route for people who have reviewed the complete marker list and need more than a focused single pathway.
- Focus
- The vitamin, mineral and iron measurements stated on the product page
- May be relevant when
- Several relevant dietary, absorption or previous deficiency questions
- Important limit
- More biomarkers may create incidental findings and do not replace dermatological assessment
Compare before ordering
Which test answers which question?
| Test | Main focus | May be relevant when | Important limit |
|---|---|---|---|
| Iron Profile Blood Test | Ferritin and related iron measurements listed on the product page | Diffuse shedding with possible depleted iron stores | Ferritin can rise with inflammation and a low result does not diagnose the cause of hair loss |
| Thyroid Function Blood Test | TSH, T3 and T4 as described on the product page | A defined thyroid function question | Medicines, pregnancy, illness and biotin may affect interpretation |
| Advanced Thyroid Blood Test | Thyroid function markers with the listed antibody measurements | A broader thyroid question where antibody context is relevant | Antibodies do not explain every symptom and a larger panel is not automatically more useful |
| Essential Vitamins Blood Test | Vitamin B12, folate and vitamin D | A focused nutritional question rather than a broad wellness screen | These three markers do not provide a complete hair, skin or nail assessment |
| Vitamin D Blood Test | 25 hydroxyvitamin D | A specific vitamin D question | Vitamin D status does not diagnose the cause of hair shedding, brittle nails or dry skin |
| Vitamins, Minerals and Iron Test | The vitamin, mineral and iron measurements stated on the product page | Several relevant dietary, absorption or previous deficiency questions | More biomarkers may create incidental findings and do not replace dermatological assessment |
Plain English biomarker guide
What selected results may add to the picture
No individual marker proves why hair, skin or nails have changed. Results should be considered alongside the visible pattern, medicines, supplements, recent illness and the laboratory reference interval.
Ferritin and iron measurements
Ferritin reflects stored iron, while related measurements add context about transport and availability. Inflammation may raise ferritin, and the relationship between ferritin and hair loss is not straightforward.
TSH, T3 and T4
These markers are considered together when reviewing thyroid function. Pregnancy, illness, medicines and biotin can affect results or interpretation.
Thyroid antibodies
Antibodies may support autoimmune thyroid context in an appropriate clinical setting. A positive result does not explain every hair, skin or nail concern.
Vitamin B12 and folate
Both contribute to blood formation and neurological function. A low result still requires consideration of diet, absorption, medicines and the underlying cause.
Vitamin D
Vitamin D status is commonly assessed using 25 hydroxyvitamin D. Season, sun exposure and supplement use can influence the result.
Biotin
Biotin is often marketed for hair, skin and nails. High dose supplements can interfere with certain laboratory immunoassays, including some thyroid tests.
From order to result
How home blood testing works
Define whether iron, thyroid or nutritional testing is the relevant route.
Read timing, fasting, medicine, supplement and collection instructions.
Use the supplied equipment and follow every collection step.
Package the sample and use the specified route promptly.
Consider the report with the visible pattern and arrange suitable follow up.
Laboratory analysis and reporting
A defined pathway after the sample leaves your home
Home collection is only the first stage. The sample must be identified, accepted, analysed using the method specified for the selected markers and reported through the relevant secure pathway.
Laboratory, accreditation, stability and reporting details can differ between products. Check the current individual test specification. A result provides laboratory context and should not be treated as a diagnosis in isolation.
Clinic address
Ground floor
Siddeley House
50 Canbury Park Road
Kingston upon Thames
KT2 6LX
Doctor led care in Kingston
Support when the visible pattern needs clinical judgement
It’s Me & You Clinic is led by Dr Laura Geige and is located around five minutes from Kingston station. The clinic is convenient for Kingston, Norbiton, Surbiton, Richmond, Hampton Wick, New Malden and neighbouring Surrey areas.
The Rotunda, Bentall Centre, Fenwick, cafés and Kingston riverside are nearby. Drivers can use central off street parking serving the Bentall Centre and the wider town centre.
Medical and editorial review
Dermatology, nutrition and medical oversight
The page has been reviewed for dermatological boundaries, iron and vitamin context, thyroid related manifestations, supplement interference, urgent symptoms and responsible communication.
Dermatology review
Dr Giedre Narkiene
Reviewed hair, scalp, skin and nail boundaries, visible red flags, symptom non specificity and the need for clinical or dermatological examination.
View professional profile
Nutrition review
Dr Rimas Geiga
Reviewed iron, vitamin, dietary and supplement related information, including the limitations of broad nutritional testing.
View professional profile
Medical oversight
Dr Laura Geige
Reviewed medical boundaries, urgent symptom escalation, clinic information and the distinction between laboratory context and diagnosis.
View professional profileMedical and editorial review date: 3 August 2026. General website information is educational and does not replace individual medical advice.
UK research and further reading
Selected university and medical journal sources
University research discussing the wider physical effects and commonly reported symptoms of iron deficiency.
Clinical discussion of symptoms, causes, iron assessment and the importance of appropriate management.
A medical journal review of nutritional factors considered in relation to hair loss.
Research illustrating why low ferritin should not be assumed to explain every case of chronic diffuse hair loss.
A multidisciplinary report covering assessment, androgen context and evidence limitations.
A summary of systematic review evidence for female pattern hair loss treatments.
Frequently asked questions
Hair, skin and nails blood tests
Which blood test should I choose for hair loss?
It depends on the pattern and accompanying symptoms. Iron testing may be relevant for diffuse shedding, while thyroid testing may suit a wider thyroid symptom pattern. Sudden, patchy, painful or scarring loss needs clinical assessment.
Can low iron cause hair shedding?
Iron deficiency is one possible contributor to diffuse shedding, but the relationship is not simple and it is not the only cause. The result should be considered with blood loss, diet, inflammation and the visible pattern.
Can thyroid problems affect hair, skin and nails?
Yes. Thyroid dysfunction may be associated with changes in hair, skin and nails, but the symptoms are non specific and require appropriate interpretation.
Should I choose the focused or advanced thyroid test?
Choose the focused test for a thyroid function question. Choose the advanced route only when the additional antibody measurements are specifically relevant.
Can vitamin deficiency cause brittle nails?
Some nutritional deficiencies may affect nails, but trauma, fungal infection, psoriasis, eczema and other causes are common. A blood test cannot diagnose every nail condition.
Does a vitamin D result diagnose hair loss?
No. It reports vitamin D status and may add context where risk factors exist, but it does not establish why hair is shedding.
Can biotin affect my blood results?
Yes. High dose biotin marketed for hair, skin and nails can interfere with some laboratory immunoassays, including certain thyroid tests.
Can a normal blood test rule out every cause of hair loss?
No. Pattern hair loss, alopecia areata, scalp inflammation, traction, fungal disease and scarring alopecia may require clinical or dermatological examination.
When should I see a dermatologist?
Seek assessment for sudden, patchy, painful, inflamed or scarring hair loss, scalp changes, nail destruction or symptoms that continue despite reassuring blood results.
Can I start iron after a low ferritin result?
Discuss the result and likely cause with a healthcare professional. Excess iron can be harmful, and blood loss or absorption problems may need investigation.
Choose with clarity
Use laboratory testing to answer a defined question, not to replace examination
Compare the six testing routes when home collection is appropriate, or contact the doctor led Kingston clinic when the pattern or symptoms need more individual judgement.
These tests provide selected laboratory information and do not replace medical or dermatological assessment, diagnosis, emergency care or treatment.
