MG Naturals · Evidence-based resource
Why do dermatologists tell people with FFA to avoid titanium dioxide?
Quick answer
Frontal fibrosing alopecia (FFA) is a scarring hair loss that pulls the hairline back at the forehead and temples and thins the eyebrows. It mostly appears in women around and after menopause — and it was almost unheard of before 1994. Since then, cases have climbed sharply enough that researchers began looking for something in the environment to explain the rise. One of the things they keep circling back to is titanium dioxide in leave-on face products.
This page answers one question plainly: why do most dermatologists now tell their FFA patients to cut titanium dioxide out of their skincare and makeup?
Short version — particles of it have been found lodged in the hair follicles of FFA patients, and the leading theory is that they set off the immune reaction that scars the follicle shut. It is not a settled, proven cause. But there is enough for dermatologists to be advising their patients to avoid it.
Peer-reviewed evidence
The finding that started it
In 2018, a team of dermatologists at the Bichat and Rothschild Hospitals in Paris examined follicles plucked from an FFA patient who had used titanium-dioxide sunscreen daily for fifteen years. Using a synchrotron — an industrial-scale imaging facility at France's national physics laboratory — they mapped abnormal deposits clinging to the follicles and confirmed the metal inside them was titanium.
Their theory points straight at the part of the follicle hair actually grows from. Titanium sitting in the follicle's stem-cell zone appears to trigger an immune "lichenoid" reaction — the same kind seen with metals like nickel — destroying the follicle's cells. Once that stem-cell region scars over, the follicle cannot grow hair again.
That is the difference between FFA and ordinary shedding. It is permanent.
The Receipts
Brunet-Possenti F, et al. (2018). Detection of titanium nanoparticles in the hair shafts of a patient with frontal fibrosing alopecia. Journal of the European Academy of Dermatology and Venereology, 32:e442–e443. Imaging performed at Synchrotron SOLEIL, France.
Read the paper →Peer-reviewed evidence
Why the front of the hairline, specifically
This is the detail that makes the theory click.
Particles small enough to slip into the follicle opening may provoke a localised immune response exactly where they land. As a 2022 paper in the American Journal of Dermatopathology put it, these particles may be able to migrate into the follicular ostia and set off an immune reaction.
That would explain why FFA strikes the frontal hairline and the eyebrows — the places where leave-on facial products are actually applied — while sparing the rest of the scalp.
The Receipts
Are Sunscreen Particles Involved in Frontal Fibrosing Alopecia? American Journal of Dermatopathology, 2022.
Read the paper →Case report — a single patient
The Australian case that put this on the radar
In Melbourne, Professor Rodney Sinclair and Dr William Cranwell documented a 54-year-old woman whose FFA hadn't budged after a year of conventional treatment — triamcinolone, ciclosporin, dutasteride, minoxidil, spironolactone — and whose hairline kept receding. When the first studies implicating sunscreen appeared, they advised her to stop using it on her forehead. Their report notes noticeable regrowth along the anterior hairline within six months.
Read this one carefully, because it is easy to over-read. It is a single patient. The improvement was credited to stopping the product and to her ongoing medical treatment. On its own it proves nothing.
What it did was push the question into mainstream dermatology. Sinclair has stayed on it — he is a co-author on a 2025 International Journal of Dermatology paper revisiting the titanium dioxide link.
The Receipts
Cranwell WC, Sinclair R (2019). Frontal fibrosing alopecia: regrowth following cessation of sunscreen on the forehead. Australasian Journal of Dermatology, 60(1):60–61. · Yii, … Sinclair R, et al. (2025). Frontal Fibrosing Alopecia and Titanium Dioxide Nanoparticles. International Journal of Dermatology.
Read the case report →Clinical guidance — advisories and expert comment
What dermatologists are actually saying
Dr Jeff Donovan, a board-certified dermatologist who specialises exclusively in hair loss, wrote a patient advisory for people with FFA. His standing recommendation is that FFA patients consider avoiding cosmetic products containing titanium dioxide until the evidence is clearer. He is equally clear that this is precautionary, not proven.
Dr Henry Lim, past president of the American Academy of Dermatology, has been the voice of caution against overreach. Reviewing the studies, he stressed that the data show a link but not a cause.
In the peer-reviewed literature, a case-control study in Acta Dermato-Venereologica reached the same practical conclusion clinicians give patients: that people with FFA should avoid, or at least reduce, use of cosmetic preparations containing titanium nanoparticles.
The Receipts
Donovan J. Patient advisory, Donovan Hair Clinic (clinical advice, not a study). · Lim HW, quoted in MDedge Dermatology, 2019 (expert comment, not a study). · Hair Shaft Morphology, Elemental Composition, and Nanoparticles in Frontal Fibrosing Alopecia: A Case-control Study. Acta Dermato-Venereologica, 2022 (peer-reviewed).
Read the case-control study →The honest part
And why it makes the case stronger, not weaker
We're not going to tell you this is a closed case, because it isn't.
- Titanium dioxide has been found in the follicles of people with and without FFA — so its mere presence doesn't prove it causes the disease.
- The studies linking face products to FFA are mostly retrospective surveys, which carry recall bias.
- At least one large study — 451 women, in Brazil — found no link to sunscreen at all, though it did flag other leave-on facial products.
- Across the research, the same two words keep appearing: association, and possible.
That is exactly why the dermatologists who recommend avoiding titanium dioxide frame it as a sensible precaution while the science catches up — and not as a settled fact.
Our position
A combined position drawing on Brunet-Possenti (2018), the American Journal of Dermatopathology (2022), Cranwell & Sinclair (2019), and the Acta Dermato-Venereologica case-control study (2022).
What this means if you're managing FFA
If your dermatologist has advised you to reduce or remove titanium dioxide, the practical problem is that it is nearly invisible on a label. It hides in sunscreens, foundations, BB creams, powders and tinted moisturisers — usually as the thing making a product opaque or "mattifying."
That is the entire reason MG Naturals exists. Every product we make is formulated without titanium dioxide, full stop.
We can't and won't tell you that it treats or prevents any condition. That is a conversation for you and your dermatologist. What we can tell you is that if you've been asked to take titanium dioxide off your shelf, you won't have to decode our labels to do it.
Important
This page is educational. It reports what dermatologists and published research say about frontal fibrosing alopecia and titanium dioxide.
It is not medical advice, and it is not a claim about what any product does. If you have FFA or any hair-loss concern, follow the guidance of your own treating dermatologist.
Just here for alternatives? Jump straight to the Titanium Dioxide–Free Directory — products we've reviewed and found titanium dioxide free.
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