If you have two vertical lines sitting between your brows, you already know what Botox for 11 lines means. Those creases form from years of squinting, concentrating, and frowning. They stick around even when your face is completely relaxed. That's what bothers most people. Not the movement itself, but the resting expression that no longer matches how they feel.
Botox for the 11 lines is the most common cosmetic injectable treatment in the US and has the longest regulatory track record. The mechanics are well understood. What patients usually want to know before booking is specific: how many units it takes, what it will cost, and what realistic before-and-after results look like.
All botulinum toxin products carry an FDA Boxed Warning about the potential for toxin effects to spread beyond the injection site; at cosmetic doses, this is rare, but your provider will review this with you before any Botox-based treatment.
What does this article cover?
- How Botox relaxes the glabellar muscles that create the 11 lines
- Unit counts by severity and what the FDA prescribing information actually says
- What Botox for 11 lines costs at New Day Medspa in Jacksonville
- What realistic before-and-after results look like and how long they last
Key takeaways
- The FDA-approved dose for glabellar lines is 20 units across 5 injection points, with 4 units per site in the corrugator and procerus muscles.
- Most providers use 20 to 30 units depending on muscle strength and line depth; deeper lines or stronger muscles may need more.
- At $8.99 per unit at New Day Medspa, a standard 20-unit glabellar session runs $179.80
- Results typically last 3 to 4 months; patients who stay on a consistent schedule often see longer-lasting relaxation over time.
What muscles actually create the 11 lines?
The 11 lines form because of two muscle groups: the corrugators, which pull the brows inward and downward when you frown, and the procerus, which sits over the bridge of the nose and scrunches when you squint or concentrate. Every time those muscles contract, the skin above folds into a crease. Do that often enough over years, and the crease becomes permanent.
Botox blocks the nerve signal that tells those specific muscles to contract. The muscles relax. The skin above stops folding. Lines that are still in the movement phase soften considerably. Lines etched deep for years soften too, though the ones that remain visible at rest may need a few consistent treatment cycles before they smooth out fully.
Nothing about that mechanism is complicated. The nuance is in getting the unit count and injection placement right for the individual patient sitting in front of you.

How many units of Botox for 11 lines?
The FDA prescribing information for Botox Cosmetic specifies 20 units as the approved dose for glabellar lines, delivered across five injection sites. Two injections go into each corrugator muscle, and one goes into the procerus, at 4 units per site. (FDA Botox Cosmetic Prescribing Information)
In practice, licensed providers adjust that starting point based on what they see:
Men tend to need more units than women for the same area. The corrugator muscles are generally larger and stronger, so it takes more product to achieve the same degree of relaxation. A 20-unit dose that works well for most women may underperform for a male patient with pronounced brow musculature.
First-time patients sometimes start at the lower end of the range, assess results at the two-week mark, and adjust at their next session if needed.
What does Botox for 11 lines cost in Jacksonville?
At New Day Medspa, wrinkle relaxers start at $8.99 per unit. There are no flat-room fees or hidden package charges. You pay per unit for what you actually receive.
For patients treating the glabellar lines alongside the forehead in the same session, combining areas offers a practical cost advantage. A full upper-face session (glabellar, forehead) typically uses 40 to 50 units, which works out to $359.60 to $449.50 at New Day Medspa's per-unit rate.
Financing is available through Cherry, PatientFi, Afterpay, and Klarna for patients who want to spread the cost of treatment across monthly payments.
Expert tip: Start with the FDA-approved 20 units if you are new to glabellar treatment, then assess at your two-week follow-up rather than guessing upward at the first session. The corrugator muscles respond differently depending on baseline activity, and it is easier to add a small amount at the next visit than to manage over-treatment. Patients on a consistent treatment schedule for a year or more often find their maintenance dose drops slightly as the muscles become less active between sessions.
Ready to find out how many units your 11 lines actually need? Book a complimentary consultation at New Day Medspa in Jacksonville, where a licensed ARNP or PA assesses your muscle activity and line depth before recommending a unit count.

Botox for 11 lines before and after: what realistic results look like
The before-and-after timeline for glabellar Botox tends to catch first-time patients off guard, usually in a good way.
Day 1 to 3: No visible change. The injection sites may be slightly tender or show minor redness. The product has not yet taken effect.
Day 3 to 5: Early softening. Some patients notice the first reduction in movement during expressive moments.
Day 7 to 14: The result settles. The muscles relax fully and the skin above stops folding with each expression. This is when others notice the treatment.
Week 2 to 3: Peak result. The 11 lines are softened at rest. Lines that were etched deeply may still show some texture at maximum contraction, but the resting appearance changes significantly.
Month 3 to 4: Muscle movement gradually returns as the nerve terminals regenerate. Most patients schedule a follow-up around the 3-month mark.
What patients actually see in their own before-and-after photos depends heavily on how deep the lines were before treatment and how long they had been present. Someone in their early thirties with moderate lines that only appear during expression will often see the lines disappear almost completely at rest. Someone with lines that have been etched in for a decade may see marked softening over two to three consistent treatment cycles rather than immediate erasure after one session.
What affects how long the results last?
Three months is the standard estimate, but the real range runs from 10 weeks to 16 weeks depending on a few factors.
Muscle mass and metabolism are the biggest ones. Patients with high baseline muscle activity or a faster metabolic rate tend to metabolize the product more quickly. Regular exercisers sometimes find their glabellar results last slightly shorter than average for this reason, though the difference is usually a few weeks, not months.
Treatment frequency also matters over time. Patients who return before the muscles fully reactivate tend to need fewer units per session as the cycles continue, and many report that results last slightly longer the more consistent they stay. The muscles simply become less active.
Sun damage and skin quality affect how visible the residual lines are between cycles. Strong daily SPF does more for the skin texture around the glabella than most people expect. Jacksonville's year-round UV exposure is real, and collagen breakdown makes the before-and-after gap look larger over time.

Can you treat 11 lines with something other than Botox?
Botox is the most established option, but it is not the only botulinum toxin in the room. New Day Medspa also carries Xeomin and Letybo for glabellar lines, which may suit specific patient situations better than Botox.
Xeomin contains no accessory proteins, which makes it worth considering for long-term patients whose Botox results have been fading faster than they used to. Letybo is the newest FDA-approved neuromodulator and has shown a slightly faster onset in clinical use, which some patients prefer. All three work on the same glabellar muscles and produce similar outcomes at equivalent unit counts.
For patients curious about how these options compare across other treatment areas, the Botox on Men in Jacksonville blog post covers how dosing adjustments work across different muscle groups.
About New Day Medspa
New Day Medspa is a medically guided aesthetic practice in Jacksonville, FL. Licensed ARNPs and PAs perform all wrinkle relaxer treatments, including Botox for glabellar lines. Every new patient receives a complimentary consultation where muscle activity and line depth are assessed and a unit estimate is given before any session is scheduled, with pricing starting at $8.99 per unit.
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How Long Does It Take for Botox to Work? | New Day Medspa breaks down the day-by-day timeline from injection to peak effect, helpful reading if this is your first Botox session.
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