The math behind the number on your bill
Nobody buys a vial of Botox. Providers buy vials, then bill patients by the unit, and the unit count is what actually decides what you pay. Frown lines typically take around 20 units. The forehead runs close to the same. Crow's feet need roughly 24 units across both sides. Stack the common upper-face combination and the total lands near 64 units before your provider adds their markup. Everything else, the ZIP code adjustment, the provider-type multiplier, is a refinement on that one core equation: units times your provider's per-unit rate times the number of areas.
The calculator above runs that exact math. Pick your treatment areas, a price-per-unit band, and a provider type, and it narrows further once you add a ZIP code. You can also do it with a pen and a napkin; the tool just saves you the arithmetic.
Per unit or per area, and who's holding the syringe
Clinics quote Botox two different ways. Per-unit pricing names a dollar figure for each unit injected, so 20 units at $14 comes to $280 and there is nothing to argue about. Per-area or "package" pricing quotes a flat number for a zone like the forehead no matter how many units it actually takes to get there. That can work out in a patient's favor when the injector is generous with dosing, but it also buries the unit count, and a buried number is hard to compare against a competing quote. Ask directly how many units the package price assumes; a provider who won't answer that question is one to be wary of.
Provider type moves the price too. Medspas usually staff nurse injectors and tend to charge less per unit. Dermatologists and plastic surgeons carry more training and usually charge more for the same syringe. Neither fact alone tells you who does better work. What matters is how many Botox injections that specific person performs week to week, and whether their license covers injecting in your state. A cheap per-unit rate from someone who rarely picks up a needle is not the bargain it looks like on paper.
Questions patients ask about pricing
How much does Botox cost?
Botox runs about $10 to $20 per unit, so a typical area is $200 to $400 and the full upper face is $500 to $1,000.
Is Botox priced per unit or per area?
Reputable providers price per unit, which is more transparent; per-area pricing can hide how many units you get.
How many units of Botox do I need?
Frown lines often take about 20 units, the forehead about 20, and crow's feet about 24, varying by person.
How long does Botox last?
Most results last 3 to 4 months, so ongoing treatments are needed to maintain them.
Does insurance cover Botox?
Cosmetic Botox is not covered, though medical uses like migraines or excessive sweating sometimes are.
How much will 20 units of Botox cover?
Twenty units of Botox typically treats one area, such as forehead lines or crow's feet, though the exact coverage depends on the severity of your wrinkles and your provider's technique. Many patients need 20 to 40 units for a full forehead treatment and 10 to 25 units for the area between the brows. Ask your injector for a unit estimate at your consultation so you can plan costs accordingly.
How long does Botox typically last?
Botox results generally last 3 to 4 months for most patients, after which muscle movement gradually returns and wrinkles reappear. Some people with lower muscle mass or slower metabolisms may see results lasting up to 6 months. Consistent treatments over time can sometimes extend the duration as the targeted muscles weaken with repeated use.
What is the average price of a Botox injection?
The average cost of Botox in the US ranges from $10 to $25 per unit, putting a typical single-area treatment between $200 and $600. Prices vary by geographic location, provider type (dermatologist versus med spa), and the number of units used. Always confirm whether your quote is per unit or per area, since the billing method affects the total significantly.
Will insurance pay for Botox for TMJ?
Some health insurance plans cover Botox injections for TMJ (temporomandibular joint) disorder when it is deemed medically necessary and other treatments have failed. Coverage varies widely by plan and insurer, and prior authorization is almost always required. Check with your insurance provider and ask your dentist or physician for documentation supporting medical necessity to improve your chances of approval.
In-depth Botox guides
Get a written quote before you commit
Botox is priced per unit and every injector sets their own rate. A consultation is what turns a range into an exact number: it gives you a unit count for your specific muscles and a total based on that provider's per-unit price.
Find a licensed injector near you
Compare providers, not just prices. Ask each one for their per-unit rate and how many units your consultation calls for.Estimate my visit
We may be paid if you request a quote through this page. That does not change the estimate above.