How Many Units of Botox Do You Need, Area by Area

Why units matter more than 'areas'

Clinics price botulinum toxin two ways: per area ("$180 per area") or per unit ("$9 per unit"). Per-area pricing is simpler to read and hides one important thing — how much product you actually receive. Two clinics can both sell you "the forehead" and put 8 units in one and 20 in the other. You will notice the difference at week six, when one result is still there and the other is not.

Asking for units solves that, and it does something else that matters if you are treating abroad: it makes your treatment reproducible. A record that says "glabella 22 units, frontalis 12, crow's feet 12 per side, Botox" lets any competent physician anywhere repeat or adjust what worked. A record that says "three areas" tells the next injector nothing.

One warning before the numbers: everything below is in Botox units (onabotulinumtoxinA). Dysport units are smaller — roughly 2.5 to 3 of them per Botox unit — so these figures do not transfer. Our brand comparison explains why that single fact makes many price comparisons meaningless.

The upper face: the three standard areas

Glabella — the frown lines between the brows. Typically 20 units, which is the dose studied in the original registration trials, spread across five injection points. Range in practice is about 15 to 30. This is usually the strongest muscle group in the face and the one where under-dosing shows up fastest.

Frontalis — the horizontal forehead lines. Typically 8 to 20 units. This is the area where restraint matters most: the frontalis is the only muscle that lifts the brow, so over-treating it drops the brow and produces the heavy, tired look people are afraid of. Many injectors deliberately treat the forehead lightly and rely on relaxing the glabella to let the brow sit better.

Crow's feet — the lines at the outer corner of the eye. Typically 10 to 15 units per side, so 20 to 30 in total, in three points per side.

Put together, a full upper face commonly runs 50 to 64 units. If a quote for "three areas" implies far less than that, the honest question to ask is how many units are included — the price may be lower because the dose is.

Smaller and less obvious areas

• Bunny lines (the wrinkles on the sides of the nose): 4–8 units total.
• Lateral brow lift (a small lift of the tail of the brow): 2–6 units per side.
• Lip flip (slight eversion of the upper lip, no volume added): 4–6 units. It is not a filler and does not make the lip bigger — see our lip filler guide for the treatment that does.
• Gummy smile: 4–8 units, placed to reduce how far the upper lip lifts. Covered in more detail in our gummy smile guide.
• Downturned mouth corners (DAO): 4–6 units total.
• Chin dimpling (mentalis): 4–8 units.
• Neck bands (platysma): 20–50 units depending on how many bands and how strong they are. This softens visible cords; it does not lift loose neck skin, and expecting it to is the most common disappointment in this area.

These small areas are where an experienced injector earns their fee, because a few units in the wrong place changes a smile. They are also where the "less is more" principle is most literally true.

The high-dose uses: masseter, sweating, migraine

Three uses need much more product than the whole face put together, which is why they are almost always priced by units.

Masseter (jaw slimming and clenching): commonly 20 to 30 units per side, sometimes more in strong muscles. Our masseter guide covers why the shape change takes months while the clenching relief arrives in two weeks.

Underarm sweating: around 50 units per side, spread across fifteen to twenty shallow points. Palms use roughly 100 units per hand. See our guide to Botox for excessive sweating.

Chronic migraine: the established protocol uses 155 units across 31 fixed injection sites in the head and neck, repeated every twelve weeks. This is a neurological treatment with a defined protocol, not a cosmetic dose scaled up, and it belongs with a physician treating migraine rather than with a cosmetic appointment. Our article on chronic migraine treatment sets out how it fits alongside other options.

Why your number may sit outside the range

Ranges are a starting point, not a prescription. Several things legitimately move your dose:

Muscle strength. The single biggest factor. A strong glabella needs more than a weak one, and your physician can feel the difference while you frown.

Sex. Men generally need more — often 1.5 times a typical female dose in the same area — because facial muscle mass is greater. A man treated with a standard "female" dose is a common reason for a result that fades in eight weeks.

Your goal. Wanting to keep visible expression is a legitimate request that lowers the dose, which is what gets marketed as baby Botox. Wanting a stronger effect raises it. Neither is wrong, but the dose has to follow the goal you actually stated.

Treatment history. Muscles treated consistently for years often weaken slightly, so long-term patients sometimes need less than they did at the start, or can extend the interval instead.

Metabolism and activity. Fast metabolisms and heavy training tend to shorten duration, which is a reason to review the interval rather than to escalate the dose indefinitely. Our guide to how long Botox lasts covers that in detail.

Using units to compare quotes across countries

If you are choosing between a clinic at home and one abroad, units are what make the comparison real. Ask each for the same three things: which product, how many units per area, and the total. Then divide. A U.S. quote of $600 for a full upper face at 60 units is $10 per unit; a Medellín quote of $250 for the same 60 units is roughly $4. That is a comparison you can defend. "Three areas for $180" against "three areas for $550" is not.

Two things to watch for on both sides of the border. A number far below the usual range is the most common way a low headline price is achieved, and the result simply fades early — you have not saved money, you have bought less product. A number far above it, without a reason you can name such as a strong masseter or a male patient, is worth questioning too.

At HealthBridge, quotes name the product and the units, and treatment is applied by a licensed physician under Colombian regulations — our medical director Dra. Olga González is a specialist in aesthetic medicine. You leave with the record of what was used, which is what lets you repeat the result whether your next treatment is here or at home. For what those numbers cost, see our Botox price guide, and for how a treatment trip is actually structured, our aesthetic medicine travel guide.