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Emile Kettle, PA
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March 3, 2026
Medically reviewed by Emile Kettle, PA – Licensed Physician Assistant | 30+ Years Clinical Experience | Last Updated: March 2026
Most patients need 20 to 60 units of Botox per treatment session, depending on which areas they are treating. For forehead lines alone, 10 to 30 units is typical. For frown lines between the eyebrows, expect 15 to 25 units. For a full upper face treatment including forehead, frown lines, and crow’s feet, 40 to 60 units is common. Your exact dosage depends on the strength of your facial muscles, the depth of your wrinkles, and your desired results.
Understanding how many units you need helps you know what to expect at your appointment and budget for your treatment. Below, we break down the typical units required for each treatment area and explain what factors affect your personalized dosage.
How Many Units of Botox for Forehead Lines?
Forehead lines, also called horizontal forehead wrinkles, typically require 10 to 30 units of Botox.
Patients with smaller foreheads or fine lines may need closer to 10 to 15 units. Those with larger foreheads, deeper lines, or stronger muscles may need 20 to 30 units for optimal results.
The forehead is one of the most common treatment areas because these lines are highly visible and often the first sign of aging patients want to address. When treating the forehead, your injector will carefully place Botox to smooth the lines while preserving some natural movement and avoiding a heavy or drooping brow.
First time patients often start with a conservative dose to see how they respond. Additional units can be added at a follow up appointment if needed.
How Many Units of Botox for Frown Lines?
Frown lines, also called glabellar lines or the “11 lines” between your eyebrows, typically require 15 to 25 units of Botox.
These vertical lines form from repeatedly furrowing your brow when concentrating, squinting, or expressing concern. The muscles in this area (the corrugator and procerus muscles) are relatively strong and often require adequate dosing for effective results.
Underdosing the frown lines is a common mistake that leads to disappointing results. If too few units are used, the muscles may still contract and create visible lines. An experienced injector knows how to dose this area appropriately for smooth, natural results.
How Many Units of Botox for Crow’s Feet?
Crow’s feet, the lines that fan out from the corners of your eyes, typically require 10 to 15 units per side, for a total of 20 to 30 units.
These lines form from years of smiling, squinting, and other facial expressions. The skin around the eyes is thinner and more delicate than other areas of the face, so careful placement is essential.
Some patients choose to treat crow’s feet alone, while others combine this area with forehead and frown lines for a comprehensive upper face treatment. Your injector can help you determine the best approach based on your concerns and goals.
How Many Units for a Full Face Botox Treatment?
A full upper face treatment targeting forehead lines, frown lines, and crow’s feet typically requires 40 to 60 units total.
Here is a general breakdown:
Forehead lines: 10 to 30 units Frown lines (11 lines): 15 to 25 units Crow’s feet: 20 to 30 units (both sides) Total: 45 to 85 units depending on individual needs
Some patients also choose to treat additional areas such as bunny lines on the nose (5 to 10 units), a lip flip (4 to 6 units), chin dimpling (4 to 8 units), or neck bands (25 to 50 units).
Treating multiple areas in one session often creates the most balanced, natural looking results. When only one area is treated, the surrounding areas may appear more prominent in comparison.
What Factors Affect How Many Units You Need?
Several factors influence your personalized Botox dosage.
Muscle strength and size is the biggest factor. Stronger, larger facial muscles require more units to relax effectively. If you are very expressive or tend to furrow your brow frequently, you may have stronger muscles in certain areas.
Gender plays a significant role. Men typically have larger, stronger facial muscles than women and often require 1.5 to 2 times more units to achieve the same results.
Treatment history affects dosage over time. First time patients may need fewer units initially while their injector assesses how they respond. Regular patients who have been getting Botox for years may find their muscles have weakened and require fewer units, or they may need the same consistent dosage.
Depth of wrinkles can influence results. Deeper, more established lines may require more units and multiple sessions to fully smooth.
Desired outcome matters. Some patients want a complete freeze with no movement, while others prefer a softer, more natural result that allows some expression. Your injector will adjust the dosage based on your goals.
Your metabolism can affect how quickly you process Botox. Faster metabolisms may require slightly higher doses or more frequent treatments.
How Many Units of Botox for First Timers?
If this is your first Botox treatment, your injector will likely start with a conservative dose.
Starting conservatively allows your injector to see how you respond to the treatment before committing to a higher dose. You can always add more units at a follow up appointment (usually scheduled 2 weeks after your initial treatment), but you cannot remove Botox once it has been injected.
This careful approach helps ensure you get natural looking results rather than an overdone appearance. First time patients sometimes worry about looking “frozen,” and a conservative start addresses that concern.
“At New Horizons Wellness Center, we strive to have a natural look and we try our best not to over inject,” says Emile Kettle, PA, Center Director at New Horizons Wellness Center in Shenandoah, TX.
Most first time patients receive between 20 and 40 units depending on which areas they are treating.
Can You Get Too Many Units of Botox?
Yes. Using too many units of Botox can create an unnatural, frozen appearance that many patients want to avoid.
Signs of too much Botox include:
- Complete inability to move the forehead or make expressions
- Heavy, drooping brows
- A surprised or startled look
- Asymmetry between sides of the face
- Difficulty raising eyebrows
The goal of Botox is to soften lines and wrinkles while maintaining some natural facial movement. You should still be able to show emotion and expression, just with fewer deep lines forming.
Working with an experienced injector who understands facial anatomy and takes a conservative approach is the best way to avoid overdone results. An injector with years of experience knows how to dose appropriately for your unique features.
At New Horizons Wellness Center, all Botox injections are performed by a Physician Assistant with over 18 years of experience in Botox and filler injections.
How to Know If You Got the Right Amount of Botox
After your treatment, here is how to evaluate whether you received the right dosage.
At 2 weeks post treatment (when full results are visible):
- Lines and wrinkles should be noticeably softened
- You should still have some facial movement and expression
- Results should look natural, not frozen or overdone
- Both sides of your face should appear balanced
Signs you may need more units:
- Lines are still visible at rest
- You can still make deep furrows when you try
- Results faded very quickly (within 6 to 8 weeks)
Signs you may have had too many units:
- You cannot move certain muscles at all
- Your brows feel heavy or look droopy
- Your expression looks unnatural
If you feel your results are not quite right, contact your provider. A follow up appointment can address any concerns. Additional units can be added if needed, or your provider can adjust the dosage for your next treatment.
“Most patients usually start seeing results in about 2 days to one week, but the full effect is seen in about 2 weeks,” notes Emile Kettle, PA.
Personalized Botox Consultations at New Horizons Wellness Center
Every patient is different, and the right number of Botox units for you depends on your unique facial anatomy, muscle strength, and aesthetic goals. That is why a personalized consultation is so important.
At New Horizons Wellness Center Shenandoah, TX , we take time to assess your specific needs before recommending a treatment plan.
Experienced injector. All Botox injections are performed by Emile Kettle, PA, a Physician Assistant with over 18 years of experience injecting Botox and fillers.
Medical oversight. Dr. Jonathan Cheng, MD, PhD, a board certified physician, serves as Medical Director.
Natural looking results. “Our goal is to make you look as natural as possible,” says Emile Kettle, PA. The team focuses on enhancing your appearance without creating an overdone look.
Transparent pricing. We charge by the unit so you know exactly what you are paying for. No hidden fees or surprise charges.
Comfortable experience. “At New Horizons Wellness Center Med Spa, we use the best needles in the industry to improve comfort,” notes Emile Kettle, PA. Most patients find the procedure very tolerable.
Schedule your Botox consultation at New Horizons Wellness Center by calling (281) 419-5544 or requesting an appointment online.
Frequently Asked Questions
Is 20 units of Botox a lot?
No, 20 units is a modest amount typically used for one treatment area like the forehead or frown lines. Many patients use 40 to 60 units when treating multiple areas.
Is 40 units of Botox normal?
Yes, 40 units is a common amount for patients treating two to three areas, such as forehead and frown lines combined.
How many units of Botox is average for a woman?
Most women use 30 to 50 units per session when treating the upper face. Women generally need fewer units than men because they have smaller, weaker facial muscles.
Do you need more Botox as you age?
Not necessarily. Some patients need more units as lines become deeper, while others who have been getting regular Botox for years find their muscles have weakened and they need fewer units over time.
This article is for informational purposes only and does not constitute medical advice. Always consult with a licensed medical professional for personalized evaluation and treatment recommendations.