If you've started noticing lines between your brows or across your forehead, you're probably wondering whether anything can be done, and what the treatment actually involves. This guide walks you through the causes, the options, and what a realistic experience looks like, so you can decide whether to take the next step.
What causes frown lines and forehead lines?
Frown lines (the vertical creases between your eyebrows) and horizontal forehead lines both develop over time as a result of repeated muscle movement. Every time you frown, squint, concentrate, or raise your brows, the skin above those muscles folds. When you're young, the skin springs back. As collagen and elastin naturally decline with age, those temporary folds begin to leave a lasting mark.
Sun exposure, dehydration, and smoking all accelerate the process by breaking down the skin's structural support. Genetics play a part too: how early and how deeply lines develop varies from person to person.
The result can be lines that make you look more tired, tense, or worried than you actually feel. That disconnect between how you feel and how you look is one of the most common reasons people start researching their options.
What treatment options are available?
For frown lines and forehead lines, the most widely used approach is injectable botulinum toxin, a purified protein that temporarily relaxes the specific muscles responsible for the creasing movement. When those muscles contract less forcefully, the overlying skin has a chance to smooth out.
You'll likely know this type of treatment by the brand name Botox, which is the most widely recognised name in this category. Several formulations are available, and the product used will depend on your anatomy and what Karen recommends at your consultation. The broader category is often called anti-wrinkle injections or muscle-relaxing injections.
Botulinum toxin has a well-established track record in both medical and aesthetic settings. When administered carefully, it softens movement while keeping expressions natural. The aim is to look refreshed, not different.
Skin-boosting treatments and topical approaches (such as medical-grade topicals and hydrating serums) can complement injectable treatment, particularly for surface-level texture. Karen will discuss what's appropriate for your skin at a consultation, as there isn't a single protocol that suits everyone.
What does the treatment involve?
The appointment itself is straightforward and short. After an assessment of your facial anatomy and a conversation about your concerns, very small amounts of the botulinum toxin are placed into precise points in the target muscles using fine needles. The process takes around 15–20 minutes for most people.
Anaesthetic isn't usually required, though a topical numbing cream can be applied beforehand if you'd prefer. Most people return to their normal day immediately afterwards, though some temporary redness or mild swelling at the injection sites is common and typically settles within a few hours.
Results aren't immediate: the treatment takes effect gradually over 10–14 days. A follow-up review allows Karen to assess the outcome and make any fine adjustments if needed.
How long do results last, and what about aftercare?
Many patients find that results last three to four months, though this varies depending on individual muscle activity, lifestyle, and how the body responds over time. Some people find results last slightly shorter or longer than average.
In the days immediately after treatment, there are a few things to avoid: vigorous exercise, excessive sweating, alcohol, and applying pressure to the treated area. Karen will go through the full aftercare guidance at your appointment.
Over time, with regular treatment, some patients notice that the muscles soften gradually and appointments may naturally space out. That said, results are temporary, as the treatment doesn't permanently change muscle function.
Starting with a consultation
This is the most important step. Anti-wrinkle treatment isn't a one-size-fits-all service, and the outcome depends heavily on an accurate assessment of your anatomy, your skin, and what you're hoping to achieve.
At Karen Brereton Aesthetics in Leicester, Karen takes a detailed medical history before recommending anything. She'll look at how your muscles move, the depth and position of any lines, and whether there are other factors worth addressing. The consultation is also the right time to ask questions: about the process, what a realistic outcome might look like, and what to do if you have concerns afterwards.
If treatment is appropriate, you'll have a clear picture of what to expect before anything is agreed.
Frequently asked questions
Is this the same as Botox? Yes. Botox is a brand name for botulinum toxin, the active ingredient used in anti-wrinkle injections for frown lines and forehead lines. It's the most widely known name for this type of treatment, though several licensed formulations exist. Karen will advise on which product is most appropriate for you at your consultation.
Will I still be able to make facial expressions? Yes. The goal is to soften movement, not to eliminate it. Karen uses conservative amounts and targets specific muscle groups to maintain natural-looking expressions.
Is it painful? The needles used are very fine, and most people describe the sensation as a mild pinch. Discomfort is brief and manageable without pain relief for the majority of patients.
What if I don't like the results? The treatment is temporary, so any outcome will gradually fade. Karen offers a review appointment to assess the result, and adjustments can often be made during the settling period if needed.
Are there any risks I should know about? As with any injectable treatment, there are potential side effects, including temporary bruising, swelling, or a mild headache. Rarely, asymmetry or unintended muscle relaxation can occur. Karen discusses these at your consultation and will only proceed if you're comfortable and fully informed.
How do I know if this is right for me? That's exactly what the consultation is for. Karen will give you an honest assessment based on your anatomy and goals, not a standard answer.
If you'd like to find out whether this treatment is right for you, the next step is a consultation with Karen at her Leicester clinic. You'll leave with a clear picture of your options and no pressure to commit.
You can also explore the full range of treatments available at the clinic.
Book a consultation with Karen Brereton Aesthetics →