

Are you struggling with persistent hair loss or slow hair growth despite trying supplements and hair masks?
The issue might be deeper than you think! A hair analysis test is a specialized laboratory examination that helps uncover internal imbalances in the body—such as vitamin and mineral deficiencies, heavy metal toxicity, thyroid dysfunction, and even the effects of chronic stress.In this comprehensive guide from Dalili Medical, we walk you through everything you need to know about the hair analysis test:What is it? Why is it done? How is it performed? And what can the results reveal about your overall health?
Hair analysis is a laboratory test that examines a small sample of hair—usually cut close to the scalp—to evaluate:
Essential minerals (like iron, zinc, magnesium)
Heavy metal toxicity (such as mercury, lead, aluminum)
Trace elements
Biochemical markers related to hormonal or nutritional imbalances
Advanced methods like ICP-MS (Inductively Coupled Plasma Mass Spectrometry) or atomic absorption are used for precise testing.
Doctors may recommend this test in the following situations:
Chronic or unexplained hair loss
Brittle or slow-growing hair
Suspected heavy metal poisoning
Malabsorption syndromes or chronic illnesses
Monitoring nutritional supplement therapy
Persistent fatigue or symptoms not explained by blood tests
Feature | Hair Analysis | Blood Tests | Urine Tests |
---|---|---|---|
Timeframe | Shows long-term trends | Reflects current or short-term | Measures current excretion |
Invasiveness | Non-invasive, easy to ship | Requires venipuncture | Requires full sample collection |
Toxic metal detection | Detects long-term exposure | Detects only acute poisoning | Detects recent excretion |
Hair tests complement blood tests, especially when blood results are inconclusive.
A small sample (about 100 mg or 2.5 cm from the scalp) is cut from the back of the head.
The hair is placed in a special envelope and sent to a certified lab.
Results are typically available within 10–15 days.
Iron: Deficiency may lead to hair loss and fatigue.
Zinc: Associated with weak follicles and hair breakage.
Magnesium: Important for hormonal balance and hair growth.
Lead: Can weaken hair structure and cause hair fall.
Mercury: Affects the nervous system and indirectly impacts hair health.
Cadmium: Toxic, accumulates over time without obvious symptoms.
Elevated cortisol over time alters calcium and potassium levels in the hair.
If the hair is chemically treated (dyed, bleached) within the last 4–6 weeks.
If contaminated with cosmetic products or oils.
If the sample is taken from damaged or unclean hair.
✅ Always wash hair with a mild, oil-free shampoo before sampling, and avoid products for at least 48 hours.
People with unexplained hair loss despite normal blood work
Patients with IBS or nutrient malabsorption
Individuals exposed to environmental toxins (e.g., factory workers)
Children with ADHD or autism (as a complementary evaluation)
Athletes and supplement users
Yes! Hair analysis is useful to:
Track improvements from nutritional supplements
Monitor detoxification in heavy metal elimination programs
Evaluate if your diet meets your mineral needs
Is it a replacement for blood tests?
No, but it’s a valuable complement for long-term tracking.
Does it hurt?
Not at all. A small portion of hair is simply trimmed.
Does it detect vitamin deficiencies?
Not directly. It shows mineral imbalances that can reflect nutritional issues.
Can children take the test?
Yes, especially in cases of poor appetite, developmental delays, or behavioral concerns.
Your eyes reflect more than just what you can see. Eye tests can help diagnose systemic health issues, neurological conditions, and autoimmune diseases. Here’s an overview of common tests:
Visual Acuity (Snellen Chart)
Tonometry: Checks for glaucoma
Visual Field Test: Assesses peripheral vision
Fundus Exam: Examines retina and optic nerve
OCT (Optical Coherence Tomography): High-res imaging of the retina
Fluorescein Angiography: Dye test to visualize blood vessels
ERG (Electroretinography): Measures retinal electrical activity
Used to detect:
Diabetic retinopathy
Retinal detachment
Macular degeneration
Glaucoma
Sometimes, eye inflammation is a sign of a systemic condition. Common blood tests include:
Test | Purpose |
---|---|
ESR / CRP | Detects inflammation |
ANA | Checks for lupus or autoimmune disease |
RF | Detects rheumatoid arthritis-related eye issues |
TSH / Free T4 | Thyroid dysfunction (can cause bulging eyes) |
HbA1c / Glucose | Screens for diabetic eye disease |
Rarely, a sample of eye fluid is tested to diagnose:
Infections (viral or bacterial)
Intraocular tumors
Autoimmune conditions affecting the eye
Sudden blurred or double vision
Eye pain or redness
Suspected internal inflammation
Diabetes or high blood pressure
Family history of eye disease
Hair analysis provides a unique window into your internal health by revealing long-term trends in mineral balance and toxic exposure. It’s especially helpful when blood tests don’t explain chronic symptoms like fatigue or hair loss.
Your body speaks through your hair—are you listening?
And when it comes to eye health, regular testing can catch silent diseases early before they affect your vision or overall well-being.