What Are "11 Lines"?
The "11's" are the vertical lines that form between your eyebrows, also called glabellar lines or frown lines. They're created by two small muscle groups — the corrugator muscles, which pull the brows inward, and the procerus, which pulls them down.
Every time you furrow, squint, focus, or frown, these muscles fold the skin in the same place. Over years, that fold becomes etched in. Eventually, the line stays visible even when your face is fully relaxed — what we call a static line.
Why the 11's Age You Faster
The space between your brows is right at the visual center of your face. It's where people's eyes go first. Even a faint 11 can read as tired, stressed, or unapproachable — even when you feel none of those things.
That's why softening the 11's tends to give the most "you look great, did something change?" reaction without anyone being able to tell what was actually treated.
How Botox Works for 11 Lines
Botox (and Dysport) are neuromodulators. When placed precisely into the corrugator and procerus muscles, they temporarily reduce muscle contraction. Less contraction means the skin above stops folding — and the line softens.
- Onset: First softening at 3–7 days.
- Full effect: Around 10–14 days.
- Static lines: Often improve gradually over weeks as the skin stops being repeatedly creased.
For more on timing, see our guide to how long Botox lasts.
Before and After: What to Expect
A typical 11-line transformation isn't dramatic in a "different person" way — it's dramatic in a relaxed way. Before treatment, patients often have a deep vertical contraction whenever they make any expression at all. Two weeks after treatment, that same expression simply… softens.
Less tension. More relaxed appearance. Still natural.
You still smile. You still raise your brows. You still look like you. You just don't look like you're concentrating quite so hard.
Will I Look Frozen?
This is the most common question we hear from patients in Addison, Dallas, and Plano — and the answer is no, not when it's dosed and placed correctly.
Frozen looks come from two things: too many units, or units placed in areas that don't need them. With careful assessment and thoughtful dosing, the goal is always the same:
Done right, Botox softens expression — it doesn't erase it.
Thinking about treating your 11's?
We'll walk you through what to expect and create a plan that fits your goals.
How Long Does Botox Last in the 11's?
Results in the glabellar area generally last 3–4 months. First-time patients sometimes find their initial round wears off slightly faster as the muscle is still strong. With consistent maintenance every 3–4 months, the muscles weaken over time and many patients find their results last longer between treatments.
How Many Units Are Needed?
For 11 lines, typical dosing is 15–25 units of Botox (or roughly 45–60 units of Dysport). The exact number depends on:
- The strength of your corrugator and procerus muscles
- Whether you've had Botox before
- Your goals — soften vs. fully relax
- Your overall facial balance with surrounding areas
If you'd like a deeper breakdown by area, our Botox units guide walks through typical ranges for the entire upper face.
When Should You Start?
There's no perfect age. Patients in their late 20s often start preventatively — treating dynamic lines before they etch in. Patients in their late 30s or 40s typically start correctively — softening lines that are already visible at rest.
The practical rule we share with patients: if you're starting to see a faint line lingering when your face is completely relaxed, that's the moment early treatment is most valuable.
Why Provider Skill Matters
The product is consistent. The result is not. The difference comes down to:
- Assessment — reading how your specific muscles move, not following a template.
- Placement — exact injection points within the corrugator and procerus complex.
- Dosing — enough to soften the line, not so much that the brows feel heavy.
- Balance — treating the 11's in harmony with the forehead and brow position.
Done well, no one should be able to tell you've had anything done — only that you look more rested.
Why Patients Choose Unscripted Medicine
Patients across Addison, Dallas, and Plano come to Unscripted because we don't follow a script. Every treatment plan is built around your anatomy and your goals — not a one-size protocol.
Our injectables, including Botox in Addison TX, are performed by Keri King, PA-C, who brings 20+ years of clinical experience and a refined, conservative approach to facial aesthetics.
The goal is always the same: soften what bothers you, preserve what makes you look like you, and refine over time as we get to know your face.
Frequently Asked Questions
Ready to Soften Your 11's?
If you're considering Botox for frown lines in Addison, Dallas, or Plano, we'd love to walk you through what's possible — and build a plan that keeps you looking like you.