Glabella Botox is an injection of botulinum toxin into the small patch of skin between your eyebrows to smooth out vertical frown lines. It’s the single most popular cosmetic Botox treatment, targeting the “11 lines” that form when you squint, concentrate, or frown. The standard treatment involves five small injections totaling 20 units and typically costs between $435 and $528 nationally.
What the Glabella Is and Why It Wrinkles
The glabella is the flat area of skin between your eyebrows, just above the bridge of your nose. Underneath it sits a group of muscles that work together every time you make a facial expression involving your brow. The main players are the corrugator muscles (one above each eyebrow) and the procerus muscle (running vertically down the center). The corrugators pull your eyebrows downward and toward each other, creating those vertical creases. The procerus pulls the skin between your brows downward, adding horizontal lines across the bridge of your nose.
These muscles contract hundreds of times a day. You use them when you squint in bright light, furrow your brow while reading, or express frustration or confusion. In your twenties and thirties, the lines disappear when your face relaxes. Over time, repeated folding of the skin in the same spot creates creases that remain visible even at rest. These are called static lines, and they’re what most people want treated.
How the Injections Work
Botulinum toxin works by blocking the chemical signal between nerves and muscles. Normally, a nerve releases a messenger molecule that tells the muscle to contract. Botox binds to the nerve ending and prevents that release, so the muscle can’t fully tighten. The muscle isn’t damaged. It simply can’t receive its usual “contract” instruction, which means the overlying skin stops being pulled into folds.
For glabellar lines specifically, the goal is to weaken the corrugator and procerus muscles enough that they stop creating deep creases, while leaving enough movement for natural-looking expressions. Complete paralysis of the area isn’t the aim for most practitioners or patients.
What Happens During Treatment
The FDA-approved protocol calls for five injection points: two in each corrugator muscle (one near the inner eyebrow and one farther out toward the middle of the brow) and one in the procerus muscle at the midline. Each site receives 4 units, for a total of 20 units. The entire procedure takes roughly 10 to 15 minutes.
Injection depth and placement vary by location. The inner corrugator injections go deeper into the muscle bulk, placed just below and inward from where your eyebrow hair begins. The outer corrugator injections are placed more superficially, closer to the skin’s surface, to avoid affecting nearby muscles that you don’t want weakened. The procerus injection goes deep into the midline, roughly level with the inner corners of your eyes.
Most people describe the sensation as a brief pinch at each site. Some providers apply a topical numbing cream or use ice beforehand, but many patients find it tolerable without either. You can return to normal activities the same day.
Results Timeline
You won’t see changes immediately. The toxin needs time to bind to nerve endings and block muscle signals. Most people notice the first effects within 2 to 5 days, with full results building over the next few weeks. Peak effect typically arrives around 5 to 6 weeks after injection.
Results last an average of about 2.5 to 3 months, though individual experiences range widely, from as little as 6 weeks to as long as 6 months. Factors like your metabolism, the strength of your facial muscles, and how expressive you are all influence duration. People who get regular treatments sometimes find their results last progressively longer, likely because the muscles gradually weaken from repeated periods of reduced activity.
How Well It Works for Women vs. Men
Clinical trial data shows a notable difference in response rates between women and men. At 30 days post-treatment, 85% of women showed significant improvement as rated by their injector, compared to 59% of men. Self-reported satisfaction was even higher: 93% of women and 72% of men felt their results were meaningful. Men typically have thicker skin and stronger corrugator muscles in the glabellar region, which likely accounts for the gap. Some practitioners use higher doses for male patients to compensate, though the FDA-approved dose remains 20 units regardless of gender.
Risks Specific to This Area
The most talked-about risk with glabella Botox is eyelid drooping, known clinically as ptosis. It occurs in roughly 3% of treatments and happens when the toxin spreads beyond its intended target to the muscle responsible for lifting your upper eyelid. This can appear anywhere from 2 to 10 days after injection.
The risk is highest when the outer corrugator injection is placed too deep or too close to the eye socket. Skilled injectors minimize this by keeping lateral injections superficial and staying within the brow line. If drooping does occur, it’s temporary, resolving as the toxin wears off over several weeks.
Other common but minor side effects include bruising at injection sites, mild headache in the hours afterward, and temporary redness or swelling. These typically resolve within a day or two.
Botox in any area is not appropriate for people who are pregnant or breastfeeding, those with neuromuscular disorders, or anyone with a known allergy to botulinum toxin.
Aftercare That Actually Matters
The most important thing to avoid is rubbing or massaging the treated area for at least 12 to 24 hours. Botox is a liquid that can spread about half an inch from where it’s placed. That small amount of migration can make the difference between a good result and an uneven one, or contribute to eyelid drooping. Skip facials and facial massages for at least 24 hours.
Try to stay upright for three to four hours after your appointment. The common advice to avoid exercise for 24 hours is more cautious than evidence-based. Physical activity doesn’t appear to affect how the toxin settles, but it can raise blood pressure and increase bruising at the injection sites. If you bruise easily, holding off on intense workouts for a few hours is reasonable.
Cost and Frequency
A standalone glabella treatment in the United States averages around $435 to $528 per session, based on recent data from the American Society of Plastic Surgeons. Prices vary significantly by region. In higher-cost areas like California, sessions can run $450 to $1,000, roughly 30 to 40% above the national average. Most providers charge per unit, so your total depends on exactly how many units you receive.
Because results last roughly 3 months on average, maintaining a smooth glabella year-round means 3 to 4 treatments annually. That puts the yearly cost somewhere between $1,300 and $2,100 for most people outside of premium markets. Cosmetic Botox is not covered by insurance.