How do Anti-Wrinkle Injections (Botox) Work?

June 22, 2026
5 min read
Anti-ageing injections relax targeted facial muscles to soften dynamic wrinkles caused by repeated expressions, creating a smoother appearance.

Anti-wrinkle injections, often referred to by the brand name Botox®, have been one of the most popular non-surgical aesthetic treatments for more than two decades. Loved for their ability to soften lines and refresh the appearance without surgery or downtime, they continue to be a go-to treatment for people looking to maintain a smoother, more youthful complexion.

Despite their popularity, there are still many misconceptions surrounding anti-wrinkle injections. If you're considering treatment for the first time, here are six important things you should know.

Anti-Wrinkle Injections Work by Relaxing Facial Muscles

Anti-wrinkle injections contain a purified protein that temporarily relaxes targeted facial muscles. When injected into specific areas, the treatment blocks the nerve signals that tell those muscles to contract.

Many of the lines we develop over time are caused by repeated facial movements such as smiling, frowning, squinting, and raising our eyebrows. By reducing these muscle movements, the skin above the treated area is able to smooth out, resulting in a softer and more refreshed appearance.

The treatment itself is quick and minimally invasive, typically taking just a few minutes to perform. Most patients describe the injections as causing only mild discomfort thanks to the use of very fine needles.

They Are Most Effective for Dynamic Wrinkles

Anti-wrinkle injections are designed to treat dynamic wrinkles – the lines that form as a result of facial expressions and muscle activity.

Common treatment areas include:

  • Forehead lines
  • Frown lines between the eyebrows (often called the "11s")
  • Crow's feet around the eyes
  • Bunny lines on the nose
  • Fine lines around the upper lip

By reducing muscle activity in these areas, anti-wrinkle injections can soften existing lines while also helping to prevent deeper wrinkles from developing over time.

Results Take Time to Develop

One of the most common misconceptions about anti-wrinkle injections is that the results are immediate.

In reality, the treatment gradually takes effect over several days as the muscles begin to relax. Most patients start to notice improvements within three to five days, with the full result typically visible after around two weeks.

As the muscles become less active, existing lines appear softer and the skin looks smoother, helping to create a more youthful and rested appearance.

The Results Are Temporary

Anti-wrinkle injections are not a permanent treatment. For most people, results last between three and six months, although this can vary depending on factors such as metabolism, lifestyle, muscle strength, and individual response to treatment.

As the effects gradually wear off, muscle movement returns and wrinkles may begin to reappear. Many patients choose to have maintenance appointments throughout the year to preserve their results.

Stopping Treatment Won't Make Wrinkles Worse

A common concern is that wrinkles will become more noticeable if treatment is discontinued. Fortunately, this isn't the case.

If you decide not to continue with anti-wrinkle injections, your muscles will simply regain their normal movement over time and your skin will gradually return to its natural ageing process.

In fact, many people find that regular treatments have helped prevent deeper lines from forming in the first place. Because the muscles have been less active, the skin may appear better than it would have done had treatment never been carried out.

Anti-Wrinkle Injections and Dermal Fillers Are Different Treatments

Although anti-wrinkle injections and dermal fillers are both injectable cosmetic treatments, they work in very different ways.

Anti-wrinkle injections reduce muscle movement to soften expression lines and prevent new wrinkles from developing.

Dermal fillers, on the other hand, restore lost volume and enhance facial contours. They are commonly used to add fullness to the lips, cheeks, chin, jawline, and areas around the mouth.

Many patients choose to combine the two treatments to achieve comprehensive facial rejuvenation, with anti-wrinkle injections relaxing dynamic lines and dermal fillers restoring volume where it has been lost through the ageing process.

Considering Anti-Wrinkle Injections?

Anti-wrinkle injections can be an excellent option for anyone looking to reduce the appearance of expression lines, prevent wrinkles from becoming more pronounced, and achieve a fresher, more youthful appearance without surgery or downtime.

At The Oxley, our experienced aesthetic team provides personalised consultations to understand your goals and create a treatment plan tailored to you. Whether you're considering anti-wrinkle injections for the first time or looking to maintain your existing results, we're here to guide you every step of the way.

Book your consultation today to discover how anti-wrinkle injections can help you look refreshed, confident, and naturally rejuvenated.