A Lip Flip uses small, precise doses of botulinum toxin to relax the upper lip outward, creating subtle enhancement that depends on careful dosing and precise placement.
Overview
A Lip Flip is a quick, minimally invasive treatment that uses a small dose of botulinum toxin (the same active ingredient in Botox, Dysport, Xeomin, and Daxxify) to relax the muscle around the upper lip. As the orbicularis oris muscle softens, the lip’s natural border rolls outward slightly, creating the appearance of a fuller, more defined upper lip without adding any volume. A Lip Flip is not a filler. It works by changing how the lip sits on the face, not by adding product underneath.
Many patients are curious about lip enhancement but hesitate to commit to filler. A Lip Flip is often explored as a lower-commitment option because it changes how the lip sits rather than adding volume. Dosing is small (typically 4 to 6 units) and placement must be measured. Too little produces no visible change; too much can affect speech, eating, or the way the lip moves naturally. The goal is a lip that looks slightly more visible, not one that behaves differently. Conservative dosing protects that line.
TL;DR Summary
A Lip Flip uses small, precise doses of botulinum toxin to relax the upper lip, creating the appearance of a fuller, more defined lip without adding volume. The treatment takes just a few minutes, requires little to no downtime, and produces subtle results that develop over 3 to 7 days and typically last 6 to 10 weeks.
The cost of a Lip Flip depends on the brand of botulinum toxin used, the number of units injected, provider expertise, and geographic market. Pricing varies widely between practices, so request an itemized quote during your consultation before booking.
Average cost (USD)
Cost Range (USD)
Results from a Lip Flip last roughly six to ten weeks, much shorter than lip filler. Insurance does not cover a Lip Flip because it’s classified as cosmetic. Most patients schedule maintenance every two to three months for consistent results.
A Lip Flip relaxes the muscle around the upper lip, allowing the lip border to roll outward slightly and become more visible without adding volume.
A Lip Flip can improve the appearance of a thin upper lip, a gummy smile, mild lip asymmetry, and vertical lip lines that become more noticeable when smiling or speaking.
A Lip Flip typically takes 5 to 15 minutes from start to finish, including injection. Most patients return to normal activities immediately after their appointment with no recovery period.
Most healthy adults are candidates for a Lip Flip. Patients with neuromuscular disorders, known allergy to botulinum toxin, pregnancy or breastfeeding, or active infection at the injection site should not proceed.
There is minimal downtime after a Lip Flip. Mild redness or small bumps may appear briefly at injection sites. Results emerge gradually over three to seven days as the muscle relaxes.
A lip flip uses a small amount of neuromodulator to relax the muscle around the mouth, allowing the upper lip to roll slightly outward for a fuller look without adding volume. It’s a subtle option for definition without filler. Below are the concerns this treatment addresses, each explained on its concern page.
Lips naturally lose volume and structure with age as collagen breaks down, leaving them looking thinner over time. A lip flip creates the appearance of a fuller lip by rolling the upper lip slightly outward, without adding any actual volume.
When the upper lip lacks definition or sits flat against the teeth, the mouth can look less expressive even when relaxed. A lip flip relaxes the muscle that pulls the lip inward, allowing more of the lip's natural pink show and improving definition.
Fine lines around the mouth often form from repeated puckering movement combined with a gradual loss of collagen. A lip flip relaxes the muscle contributing to some of this movement, which can soften fine lines around the upper lip as a secondary effect.
A Lip Flip uses botulinum toxin to relax the upper lip muscle, so the lip rolls outward, creating a fuller appearance. Lip filler injects hyaluronic acid to add actual volume. A Lip Flip is subtler, shorter-lasting, and lower-cost; filler delivers more dramatic, longer-lasting volume change. The two treatments serve different goals.
Most patients see results lasting six to ten weeks. The effect peaks around two to three weeks after treatment and gradually fades as the botulinum toxin wears off. Patients who want consistent results typically schedule maintenance every two to three months.
When performed with conservative dosing, a Lip Flip should not significantly interfere with speech or eating. Some patients notice mild adjustment for the first week, particularly with straws, certain consonants, or whistling. These effects fade quickly as the body adjusts. Higher doses raise risk; conservative dosing protects function.
Yes. Many providers combine the two for complementary results. The Lip Flip enhances upper lip border definition; lip filler adds actual volume to thin lips. The two treatments often produce a more refined outcome together than either alone, though timing and sequencing should be discussed with your provider.
Patients with neuromuscular disorders (myasthenia gravis, Lambert-Eaton syndrome), known allergy to botulinum toxin, current pregnancy or breastfeeding, active skin infection at the injection site, or unrealistic expectations about the magnitude of change are typically not candidates. A consultation determines safe eligibility.
The following references provide clinical evidence and safety information on the Lip Flip.
The lip flip: a systematic review of botulinum toxin lip augmentation
Lip Flip Revisited: Clinical Outcomes and Neuromodulatory Basis of Upper Lip Eversion
Botulinum Toxin Type-A for Lip Augmentation: "Lip Flip"
The use of botulinum toxin A in upper lip augmentation
All sources reviewed for clinical accuracy and relevance.
RN, BSN
Alexandra Pereira, RN, BSN, Aesthetic Nurse Injector at Bella Body Medical Spa in Yardley. ICU background. Botox, dermal fillers, biostimulator therapy.
Yardley, PA
RN, BSN
Jaclyn McCreesh, RN, BSN, Aesthetic Nurse Injector at Bella Body Medical Spa in Yardley. Full-face balancing, injectable artistry, nearly two decades.
Yardley, PA
Aesthetic Nurse Practitioner, MSN, APRN, FNP-C
Ashley Brown, MSN, APRN, FNP-C is an Aesthetic Nurse Practitioner at NuIQ Wellness Lounge in Cleveland, specializing in advanced cosmetic injectables, anti-aging therapies, and longevity care, with lip enhancement among her signature treatments.
Cleveland, OH
RN, CANS
Kirstie Anderson, RN, CANS, is a Certified Aesthetic Nurse Specialist at Allegro MedSpa, where she is known for her artistic eye, clinical expertise, and commitment to natural, refined results.
Santa Rosa, CA
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