Most people getting cosmetic Botox for the first time need somewhere between 20 and 64 units, depending on which areas of the face they’re treating. The FDA-approved dose for all three major upper-face zones combined (forehead, frown lines, and crow’s feet) is 64 units total. But many people only treat one or two areas per visit, so a typical session often falls in the 20 to 40 unit range.
The exact number depends on the treatment area, the strength of your facial muscles, your sex, and whether you’re going for a subtle softening or a more frozen look. Here’s what to expect for each area.
Forehead Lines
The FDA-approved dose for horizontal forehead lines is 20 units, split evenly across five injection sites in the broad muscle that raises your eyebrows. In practice, providers often use anywhere from 10 to 30 units depending on how deep your lines are and how active that muscle is. People with stronger foreheads or deeper creases generally need more.
Forehead Botox is almost always done alongside frown line treatment. Treating the forehead alone can cause the brow to drop, since you’re weakening the muscle that lifts it without also relaxing the muscles that pull it down. When both areas are treated together, the FDA-approved combined dose is 40 units (20 for forehead, 20 for frown lines).
Frown Lines (the “11s”)
Those vertical lines between your eyebrows are the most commonly treated area and were the first cosmetic use approved by the FDA. The standard dose is 20 units spread across five injection points: two in each of the muscles that pull your brows together, plus one in the small muscle between them that pulls the skin downward.
Some providers go higher, up to 40 units, particularly for men or people with very strong frown muscles. Men typically need more Botox across all facial areas because their muscles tend to be larger and more powerful.
Crow’s Feet
The fine lines that fan out from the corners of your eyes when you smile require 12 units per side at the FDA-approved dose, for a total of 24 units. Each side gets three small injections in the circular muscle surrounding the eye. Providers commonly use anywhere from 5 to 15 units per side depending on the severity of the lines, putting the practical range at 10 to 30 units total.
Full Upper-Face Treatment
If you’re treating all three upper-face areas in one session, the FDA-approved total is 64 units: 20 for the forehead, 20 for the frown lines, and 24 for crow’s feet. This is the most common combination for people wanting a comprehensive refresh, and it’s what many providers consider a “full face” cosmetic treatment even though it only covers the upper third.
Lip Flip
A Botox lip flip uses far fewer units than any other treatment area. The typical dose is just 2 to 4 units in the upper lip and about 2 units in the lower lip. Rather than adding volume like filler, these small doses relax the muscle around your mouth just enough to let the lip roll slightly outward, creating a fuller appearance. Because the dose is so low, the effect tends to be subtle and wears off faster than other areas.
Jaw Slimming and TMJ Relief
The masseter muscles on either side of the jaw require significantly more Botox than any cosmetic facial area. Most patients need 20 to 30 units per side, for a total of 40 to 60 units. These are large, powerful chewing muscles, and the higher dose reflects that. People pursue masseter Botox for two overlapping reasons: to slim a square jawline into a more tapered shape, or to relieve jaw tension and teeth grinding. The treatment works the same way for both goals, relaxing and gradually shrinking the muscle over repeated sessions.
Excessive Sweating
Botox for underarm sweating (hyperhidrosis) is a medical rather than cosmetic treatment, and the doses are substantially higher. The recommended dose is 50 units per underarm, totaling 100 units. Each underarm typically receives 12 to 15 small injections spread across the sweating area. Results last a median of about 201 days (roughly 6.5 months), which is noticeably longer than cosmetic treatments.
Why Men Typically Need More
Men almost always require higher doses than women for the same treatment areas. Male facial muscles are generally thicker and stronger, which means they need more Botox to achieve the same degree of relaxation. A woman might get great results with 20 units for her frown lines while a man with a heavy brow could need 30 to 40 units for the same area. If you’re a man researching Botox, expect your total unit count to land at the higher end of every range mentioned here.
How Long Results Last
Cosmetic Botox in the upper face typically lasts 3 to 4 months before the muscles gradually regain their full movement. The timeline varies somewhat by area and by individual. People who get treatments consistently over time often find their results start lasting a bit longer, since the targeted muscles weaken from repeated relaxation and don’t snap back as quickly.
Medical uses tend to last longer. Hyperhidrosis treatment lasts around 6 to 7 months on average. Regardless of the treatment area, providers generally recommend waiting at least 12 weeks between sessions.
What Affects Your Unit Count
The numbers above are starting points. Your provider will adjust based on several factors:
- Muscle strength: Stronger, more active muscles need more units to relax. Someone who furrows their brow constantly will likely need more than someone with mild lines.
- Treatment goals: If you want some natural movement preserved (the “frozen” look isn’t your thing), your provider may use fewer units. If you want deep lines completely smoothed, you’ll need more.
- Treatment history: First-timers sometimes start with a conservative dose so the provider can see how your muscles respond, then adjust upward at the next appointment.
- Age and skin quality: Deeper, more established lines in older skin may need higher doses, though very deep wrinkles that are visible even at rest sometimes need filler rather than Botox alone.
At a national average of roughly $10 to $15 per unit, a typical upper-face session of 40 to 64 units runs somewhere between $400 and $960. Prices vary widely by location and provider. A first-time consultation is the best way to get a personalized unit count and cost estimate for your specific goals.