The '11s' between the brows — softened without freezing expression.
Frown lines — the vertical creases between the eyebrows also known as glabellar or 'number 11' lines — are caused by repeated contraction of the corrugator supercilii and procerus muscles whenever you concentrate, frown or squint. Over time, as collagen and elastin diminish, the skin retains the imprint of those movements. At Feonix Aesthetics in Coventry, GMC-registered doctors treat frown lines with precise anti-wrinkle injections that soften the lines while preserving natural expression.
Book ConsultationFrown lines, also known as glabellar lines or the "number 11" lines, are the vertical creases that appear between the eyebrows. They are formed by the repeated contraction of the corrugator supercilii and procerus muscles, which draw the brows together when you concentrate, frown, squint, or express displeasure. Over time, these lines can become deeply etched into the skin and remain visible even when the face is relaxed. Frown lines are one of the most commonly treated concerns in aesthetics because of the disproportionate impact they have on facial expression, often giving the appearance of anger, irritation, or deep concern regardless of actual mood.
The primary cause of frown lines is repetitive muscle contraction. Every time you furrow your brow, the underlying muscles compress the skin between the eyebrows, creating vertical folds. In youth, the skin bounces back smoothly when the muscles relax, but as collagen and elastin diminish with age, the skin retains the imprint of these movements. People who are naturally expressive or who frequently squint, concentrate, or frown tend to develop these lines earlier and more deeply. Sun damage accelerates the breakdown of collagen, and environmental factors such as pollution and smoking further weaken the structural integrity of the skin. Screen use is an increasingly recognised contributor, as the concentration and squinting involved in staring at devices for extended periods can significantly increase the muscle activity in this area.
No topical product can relax the muscles responsible for frown lines, and no cream can fill in deep creases that have been forming for years. Professional anti-wrinkle injections and dermal fillers at Feonix Aesthetics directly address both the cause and the visible result of frown lines, delivering dramatic improvement that over-the-counter products simply cannot replicate. Our practitioners are highly skilled in treating this sensitive area with precision and subtlety. Contact our Coventry or Leamington Spa clinic to arrange your consultation.
Frown lines have a uniquely powerful impact on how others perceive you. Research has shown that the glabellar region is one of the areas people focus on most when reading facial expressions. Deep frown lines can make you appear perpetually angry, stressed, or disapproving, even when you are feeling relaxed and content. This can affect personal relationships, professional interactions, and your own self-image when you see yourself in the mirror. Many clients who seek frown line treatment in Coventry and Leamington Spa at Feonix Aesthetics tell us that softening these lines has had a positive impact not only on their appearance but also on how people respond to them in daily interactions.
Anti-wrinkle injections are the gold-standard treatment for frown lines, and they are one of the most requested treatments at Feonix Aesthetics in Coventry and Leamington Spa. Botox or the next-generation Relfydess is precisely injected into the corrugator and procerus muscles between the eyebrows, temporarily reducing their ability to contract and create the furrowing motion that causes frown lines. The result is a smooth, relaxed brow area that still allows natural expression. Relfydess is particularly appealing for clients seeking frown line treatment because its longer duration of action means fewer treatment sessions throughout the year.
For clients with deeply established frown lines that remain visible at rest even after anti-wrinkle injections, dermal fillers can provide additional improvement. A small amount of hyaluronic acid filler placed directly into the deep crease can lift and smooth the line from within, providing immediate visible improvement. This combination of muscle relaxation and volumetric correction is often the most effective approach for long-standing frown lines.
To further enhance and maintain results, we may recommend Profhilo for improved skin quality and hydration in the brow area, or microneedling and Secret RF to stimulate collagen production and improve skin texture. These complementary treatments help the skin to maintain its smoothness between anti-wrinkle injection appointments and contribute to a more youthful overall appearance.
Anti-wrinkle injections typically show initial effects within two to four days, with the full result apparent at ten to fourteen days. Results last approximately three to four months with Botox and up to six months with Relfydess. If dermal filler is used in combination, those results are visible immediately and can last nine to twelve months. Clients who maintain regular treatment often find that their frown lines soften permanently over time, as the muscles weaken from reduced use.
GMC-doctor-administered Botox and Relfydess targeting the muscles that cause expression lines and medical indications including hyperhidrosis.
SUPPORTINGPremium hyaluronic acid fillers placed by GMC-registered doctors for structural volume restoration and contour refinement.
RELATEDBDDE-free hyaluronic acid bio-remodelling injectable that stimulates collagen, elastin and skin quality across the full face.
Frown lines are caused by repetitive muscle contraction combined with age-related collagen loss. Every time you concentrate, frown, squint or express displeasure, the corrugator and procerus muscles pull the skin between the brows into a vertical fold. In young skin, collagen and elastin spring back smoothly. As those proteins deplete with age, sun exposure and lifestyle factors, the skin retains the imprint — static lines remain visible even when the face is relaxed. Naturally expressive people and those who work long hours at screens tend to develop them earlier.
Daily broad-spectrum SPF 50 is the single most effective preventive step — UV damage accelerates collagen loss dramatically. Consistent skincare with retinoids, peptides and antioxidants supports collagen health and can mildly soften early lines. What topical products cannot do is relax the underlying muscles that cause the lines in the first place — that requires anti-wrinkle injection. For established deep frown lines, topical skincare is supportive rather than corrective. Prevention in your 20s and 30s has a disproportionately large impact on the decades that follow.
Anti-wrinkle injection is the gold-standard. At Feonix Aesthetics, botulinum toxin (Botox or next-generation Relfydess) is precisely injected into the corrugator and procerus muscles, temporarily relaxing them so the skin between the brows smooths out. For deep, long-established lines that remain visible at rest even after anti-wrinkle treatment, a small amount of dermal filler placed directly into the crease provides additional correction. Relfydess lasts up to 6 months — roughly double standard Botox — and is increasingly the preferred option for regular clients.
First effects typically appear at 5–7 days, with full results visible at 14 days. At the two-week mark we book a complimentary review appointment at our Coventry clinic to assess the result and top up if any area needs refinement. Botox lasts 3–4 months; Relfydess lasts up to 6 months. Results build with regular treatment — the muscles gradually weaken from reduced use, so many long-term clients need lower doses to maintain the same effect over time.
Start with a consultation at our Coventry clinic (15 Little Park Street) where a GMC-registered doctor assesses the strength of your brow muscles, your facial expression patterns, and your goals. Clients travelling from Leamington Spa or further afield are welcome — consultations can be booked at either Feonix location. Botox for frown lines is £150 per area; Relfydess is £225 per area. Prices include the consultation, the treatment, and the complimentary 2-week review with top-up if needed. Klarna finance is available.
Frown lines don't need to be frozen. GMC-registered doctors at Feonix Aesthetics start conservative, review at two weeks, and tailor the dose to your anatomy — the goal is you, refreshed, not you, immobilised.
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