Injectables

Dermal Fillers: Separating Fact from Misconception

By Dr. Elnaz Mirtaheri7 min read
Close-up of a clinical setting with neutral background

Educational purposes only. This article does not constitute medical advice and is not a substitute for professional clinical consultation. Consult a qualified practitioner before making any decisions about your health or treatment.

Why is there so much misinformation?

Dermal fillers are among the most frequently discussed cosmetic treatments in mainstream media and on social platforms. This visibility has brought widespread misunderstanding — about what fillers are, what they do, how long they last, and what risks they carry.

This article is not a recommendation to seek treatment. It is an educational resource intended to help you form a more accurate picture of the topic before making any decisions.

Common misconception: fillers are permanent

Most dermal fillers used in clinical practice today are based on hyaluronic acid (HA), a substance that occurs naturally in the body. HA fillers are not permanent — they are broken down by the body over time. The rate at which this occurs depends on the specific product, the area treated, the volume used, and individual metabolism.

Some patients find their results last longer than expected; others find they resolve more quickly. Duration varies.

Common misconception: fillers always look obvious

The visible, exaggerated results that attract media attention typically reflect a specific aesthetic approach, or in some cases overfilling or technique issues. Well-placed filler, in appropriate volumes, is generally not detectable as such. Whether a result looks natural depends significantly on the skill and aesthetic judgement of the practitioner, as well as the goals of the patient.

Common misconception: fillers are risk-free

Dermal fillers carry real risks, which should be discussed openly at any consultation. Common side effects include swelling, bruising, and tenderness in the treated area. These are typically temporary. Less common but more serious risks include infection, granuloma formation, and — rarely — vascular complications. The risk of complications is reduced, though not eliminated, when treatment is performed by an appropriately trained practitioner.

What the evidence does and does not show

The evidence base for aesthetic treatments varies considerably by procedure and outcome measure. For some concerns, there is good-quality evidence of meaningful outcomes. For others, evidence is limited to smaller studies or shorter follow-up periods. Your practitioner should be able to discuss the evidence relevant to your specific situation honestly, including acknowledging what is not yet well understood.

Questions worth asking at a consultation

If you are considering any injectable treatment, consider asking: What is the evidence base for this specific treatment for my concern? What are the realistic risks, including less common ones? What happens if I am not satisfied with the result? Is the product being used CE-marked and appropriate for the proposed use?

About the author

Dr. Elnaz Mirtaheri

Dr. Elnaz Mirtaheri

Medical doctor and aesthetic medicine practitioner. Dr. Elnaz Mirtaheri takes a consultation-led, evidence-informed approach to aesthetic care — prioritising individual assessment, natural outcomes, and clinical integrity in every treatment decision.

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