The Science Behind Anti-Wrinkle Injections: What You Need to Know

Anti-wrinkle injections — most commonly using botulinum toxin — have become one of the most sought-after aesthetic treatments in the world. Yet despite their popularity, many patients still have questions about how they work, how long results last, and what to expect during and after treatment.

How Do They Work?

Botulinum toxin temporarily relaxes the muscles responsible for creating expression lines. When injected into targeted areas — such as the forehead, between the brows (glabella), or around the eyes (crow’s feet) — it blocks the nerve signals that cause muscle contraction. The result is a smoother, more relaxed appearance.

The treatment itself takes around 15–20 minutes and involves a series of small injections using an ultra-fine needle. Most patients describe the sensation as a minor pinch, and no anaesthetic is required.

What Results Can You Expect?

Results typically begin to appear within 3–5 days, with full effect visible at the two-week mark. Most patients enjoy their results for 3–4 months, after which a top-up treatment is recommended to maintain the effect. With regular treatments, many patients find that the muscles gradually weaken, meaning they require less product over time.

At Aesthetic Medicine by Dr Numerah, every treatment is personalised. We conduct a thorough facial assessment before any injections to ensure natural-looking, balanced results — never frozen or overdone.

Is It Safe?

When performed by a qualified, experienced medical professional, anti-wrinkle injections carry an excellent safety profile. At our clinic, all injectable treatments are carried out by Dr Numerah, a trained aesthetic medicine physician. We use only premium, licensed products and maintain strict sterile protocols in all procedures.

Book a complimentary consultation today to discuss whether anti-wrinkle injections are right for you.