Iron, Vitamin D, B12 and Zinc: Which Deficiencies Cause Hair Loss?
Which deficiencies are linked to hair fall, which tests show them, why supplements without a test can backfire, and how long regrowth takes.
White flakes on your shoulders and an itch that keeps coming back are not always plain dandruff. Psoriasis, a fungal infection or a reaction to hair dye can look much the same and need different treatment. At our Rohini clinic in North-West Delhi, a doctor examines the scalp and names the condition before suggesting any shampoo.
Rohini Clinic
North-West Delhi
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Diagnosis first
Two questions
Used properly
Registered doctors
What the flakes might be
A flaking, itchy scalp is a symptom. These are the usual causes; each one is handled differently, and the examination is what tells them apart.
Deciding whether to start with a salon, a trichologist or a doctor? Dermatologist, trichologist or salon explains who can diagnose a scalp condition and prescribe for it.
At the Rohini clinic
A scalp cannot be diagnosed from a description, so the first visit is spent looking at it. Note the name of any hair dye or chemical treatment used recently, and when the problem started and when it is worse.

Step 01
How long it has gone on, whether season or stress changes it, the products and dyes you use, what you have tried, and whether you are losing hair. Bring the shampoos, scalp products and any prescribed lotion you have used, or photos of the labels.

Step 02
The scalp is examined with the hair parted in several places, under magnification where useful, for scale, redness, plaques, broken hairs and bare patches. The face, elbows or nails may be checked too. Skip oiling the night before, so the scalp can be seen as it usually is.

Step 03
Most people need none. If a fungal infection is suspected, a scraping or a few hairs may be sent to check for fungus before treatment starts.

Step 04
Which shampoo, how often and for how long it stays on, anything prescribed, and a date to come back to the Rohini clinic for review.
Treatment
The active ingredient matters more than the brand. These are the main groups, and the doctor picks or rotates them to suit your scalp.
Act on the yeast behind seborrhoeic dermatitis. Often the first choice, used more often at the start and less once things settle.
Reduce yeast and flaking. Useful for rotation, since some scalps respond better to a change than to more of the same.
Slow down scaling and calm inflammation in stubborn cases and psoriasis. They smell strongly and can tint light or coloured hair.
Ingredients such as salicylic acid loosen thick scale so other treatments can reach the skin beneath.
A lotion for a set period when redness and itch are marked, used alongside the shampoo, not instead of it.
For a confirmed scalp infection, prescribed and monitored by the doctor. Shampoo alone does not clear it.
Most shampoos that “don’t work” were rinsed off too soon. The ingredient needs time on the skin.

Realistic expectations
Seborrhoeic dermatitis usually settles with treatment and then returns from time to time; a good plan expects that. Seasonal change, stress, humid months and a sweaty scalp under a helmet or cap are common triggers, and a flare is not a failure of treatment.
Hard water and build-up. Mineral and product residue can leave a scalp itchy or dull and is easily mistaken for dandruff. An occasional clarifying wash can help, but not on a scalp that is red or sore until it has been examined.

Flaking and hair fall
Not in the way most people fear. Dandruff does not cause baldness and does not destroy follicles. An inflamed, itchy scalp can shed more while it is inflamed, and scratching snaps hairs; once the scalp settles, that extra shedding usually settles too.
Heavy oiling often makes this worse: oil left on a flaking scalp tends to feed seborrhoeic dermatitis, so the itch, scratching and shedding carry on. Keep oil to the lengths until the scalp is under control.
Sometimes pattern hair loss is progressing quietly behind the flaking. If shedding continues once the scalp is calm, it is assessed in its own right through hair fall treatment at the Rohini clinic; our guide to telogen effluvium and pattern hair loss explains the difference, and the six-question hair loss self-assessment can suggest a next step.
Get the scalp examined if:
Living in Delhi
Seborrhoeic dermatitis often follows the calendar. Knowing your own pattern lets you step the routine up as a flare starts rather than weeks later. General points; your plan comes from the examination.
Sweat and oil build up under a helmet or cap. Wash after a sweaty day and keep the lining clean; regular washing helps rather than harms.
Damp months are a common time for flares and for fungal scalp infections. Dry the scalp properly rather than tying hair up wet.
Dry scalp is worse in cold weather and is easily taken for dandruff. Small, dry, white flakes with dry skin elsewhere need gentler care, not a stronger shampoo.
Dust and smog settle on an oily scalp and add to the itch and irritation. Washing them out regularly is part of the routine; the hairs seen on wash days had already been shed.
Cost guidance
For most people the cost is modest and predictable: a consultation, a medicated shampoo, sometimes a prescribed preparation for a few weeks, and a review. It rises when a fungal infection needs a test and antifungal medicine, when psoriasis needs longer treatment, or when hair fall turns out to be a separate problem needing its own assessment.
Prices are not published; the plan and its cost are explained after the examination. See cost and payment options. If hair fall is part of the picture, hair fall treatment in Rohini explains what that assessment involves.
Consultation
Medicated shampoo
Prescribed lotion
Fungal test
They apply wherever you are seen, including here.
Who you will see
Treatment at the Rohini clinic is carried out by registered medical practitioners. Every doctor at DenceSpot is listed below with their qualifications.
Dr. Nyra
MBBS, MD (Dermatology)
Further reading
Plain-language articles on hair loss and its treatment. Each article shows its own author and review details.
Which deficiencies are linked to hair fall, which tests show them, why supplements without a test can backfire, and how long regrowth takes.
How an underactive or overactive thyroid affects hair, the tests that show it, and what to expect once thyroid levels are treated.
Why shedding often starts a few months after childbirth, how long it usually lasts, treatment questions while breastfeeding, and when to get it checked.
Visit the clinic
Scalp examinations, treatment and review visits take place at our clinic in Rohini, North-West Delhi, near the Outer Ring Road.
Our clinic
Rohini, Delhi
Every treatment below is carried out at the Rohini clinic, and each starts with an examination and a written plan. See the Rohini clinic page for directions and hours.
Cost guides for the Rohini clinic: Hair transplant cost in Rohini · PRP treatment cost in Rohini · Beard transplant cost in Rohini.
Rohini, Delhi
Bring the shampoos you have tried. You will leave with a diagnosis, a routine that allows for flares, and a separate answer on any hair loss.
