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Thin lips

Thin lips refer to a lack of fullness or definition in the lips, giving them a smaller or less pronounced appearance. It can be a result of genetics, aging, or other factors. Thin lips can be a source of insecurity or self-consciousness for some people. An aesthetic medicine clinic offers various cosmetic procedures to improve the appearance of thin lips, such as dermal filler injections, lip augmentation, or lip lift non-surgery. A specialist can evaluate the face and recommend the best course of action to help achieve a more full, youthful, and aesthetically pleasing lip appearance.

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What Makes Lips Look Thin?

Some patients have naturally thin lips — it’s simply how their lips are built, and genetics plays the largest role in lip volume and shape. For others, the change has happened gradually: collagen loss after age 30 causes lips to thin, flatten, and lose definition at the border. The upper lip typically loses volume and projection faster than the lower, which is why the lips can start to look imbalanced over time. The vermilion border (the lip’s edge) also softens with age, causing lipstick to bleed and the natural lip outline to fade.

Whether your concern is genetic thinness, age-related volume loss, or a specific feature like the Cupid’s bow or upper lip projection, the treatment conversation is the same — it starts with what you want the result to look like.

Treatment Options for Thin Lips

For most patients, the answer to thin lips is direct: hyaluronic acid filler adds measurable volume and definition in a single appointment. A secondary option — the lip flip — doesn’t add volume but addresses a specific pattern. Here’s how they compare.

Lip Filler (Lip Augmentation)

Lip filler is the primary and most versatile treatment for thin lips. Hyaluronic acid fillers — most commonly Juvederm Volbella or Ultra XC — add actual volume and structure, with results visible immediately and lasting 9–12 months. Technique is tailored to your anatomy: some patients want overall fullness, others want border definition or Cupid’s bow enhancement without significant size change. For first-timers, the result is fully reversible with hyaluronidase if you want to adjust or undo. Learn more about Lip Augmentation →

Lip Flip (Botox)

If your upper lip tends to “disappear” when you smile — curling inward rather than staying visible — a lip flip addresses that specific pattern without adding volume. A small amount of Botox relaxes the muscle along the upper lip border, allowing it to evert slightly. It’s a lower-cost entry point (~$100–150, lasts 6–8 weeks) and works well alone for patients whose concern is lip position rather than size, or combined with filler for a more complete result. The key distinction: a lip flip changes the lip’s position, while filler adds actual volume. If your lips are significantly thin, a flip alone typically won’t be enough — but for patients on the borderline, it’s a meaningful starting option.

For patients whose lips look thin partly due to fine perioral lines or dehydrated lip skin, SkinVive by Juvederm can improve lip skin hydration and texture as a complement to filler — addressing the skin quality component rather than volume.

Am I a Good Candidate for Lip Augmentation?

Most adults who are bothered by thin lips are candidates for lip filler. There’s no minimum or maximum — patients in their 20s seeking fuller lips and patients in their 50s restoring age-related volume loss are both appropriate candidates. During your consultation, Dr. Borakowski discusses what result will complement your unique facial features and proportions, focusing on a subtle, individualized enhancement—never an exaggerated or ‘template’ look. Patients with active oral herpes outbreaks should wait until resolved; otherwise, candidacy is straightforward.

How Much Does Lip Filler Cost?

Lip filler is priced per syringe, with most patients starting with one syringe for natural-looking enhancement. A lip flip is a separate, lower-cost service. We’ll give you a clear cost estimate and walk through your options at your Scottsdale consultation.