Seven Common Myths About Botulinum Toxin

Botulinum toxin is the treatment I am asked about most often in consultation, and most of those questions come from things people have heard second-hand. Below I take the seven most frequent misconceptions in turn.

1. "It freezes the face"

A frozen expression comes not from the treatment itself but from too high a dose and poorly chosen injection points. With proper planning the aim is not to remove expression but to balance an overactive muscle. The strength of your brow movement is assessed at examination and the dose set accordingly. For anyone hesitant, starting lower and adding at the two-week review is a sensible route.

2. "Once you start, you become dependent"

Botulinum toxin has no addictive effect. If treatment is not repeated, muscle strength gradually returns. What people describe as "dependence" is discomfort at seeing a familiar appearance revert — an observation about habit, not pharmacology.

3. "My lines will be worse if I stop"

No. As the effect wears off, the lines simply approach the appearance they had before. Apart from the natural ageing that has occurred in the meantime, no additional worsening is expected.

4. "You shouldn't have it done young"

Age alone is not the criterion. What matters is whether facial movement has started to leave a line that persists at rest. For some people this appears in their forties, for others in their late twenties. Equally, routinely treating someone with no lines at all under the banner of "prevention" is not sound practice; the decision must rest on examination.

The relationship between muscle strength and lines

Someone who uses the forehead a great deal will show lines early, while a person with limited facial movement may not develop them for years. When comparing, the reference point is not your age but how your own skin behaves.

5. "It accumulates in the body"

Botulinum toxin does not accumulate in tissue. Its action is limited to temporarily reducing transmission at the nerve ending; over time new nerve endings form and muscle function returns. There is nevertheless a reason not to repeat doses too frequently: minimum intervals are observed to reduce the likelihood of antibody formation.

6. "The result is the same whoever performs it"

The outcome depends as much on anatomical knowledge and point selection as on the product. The same product in different hands can give very different results. In Türkiye these procedures may only be performed by physicians; injections given in beauty salons are not only unlawful but risky in terms of managing complications.

7. "You see the effect straight away"

The effect begins within three to seven days and settles fully at two weeks. Judging by the first few days is misleading. That is why the review appointment is scheduled for the second week: any asymmetry or insufficient response is adjusted then.

Three questions worth asking at the appointment

Most misconceptions are fed by questions that never get asked. I would suggest clarifying these three points before any treatment.

Who will perform the injection? In Türkiye, botulinum toxin may only be injected by a physician. Asking whether the person treating you is a doctor is entirely your right.

Which product will be used? You may ask its name, whether it is licensed by the Ministry of Health and what its expiry date is, and you may ask to see the box. An unbroken cold chain matters for the potency of these products.

What happens if there is a problem? Before the procedure you should know who to contact and how, should asymmetry, eyelid drooping or any unexpected finding develop, and when your review appointment is.

Getting clear answers to these three questions matters as much as the technique itself.

A short note

When the indication is correct and the dose individualised, botulinum toxin is a predictable treatment. The decision follows a face-to-face examination that includes facial analysis and your medical history. What you read online does not replace that assessment — please bring your questions to the appointment.