How many units of Botox do you need per area?

How many units of Botox do you need per area?

Botox is a drug doctors have been using for years to treat facial creases and wrinkles. It is an injectable cosmetic treatment. So if you’re looking to restore your youthful appearance, Botox is a simple yet an effective solution for you!

In this article, I’ll answer a very frequently asked question: how many units of Botox do you need per area?

The common areas that people get Botox treatment for are: the forehead and the area around the brows. Botox is measured in units and there is a different unit recommendation for Botox injections depending on the area.

Units of Botox needed per area

There is no easy way to determine the right number of units needed per area without first having a consultation with the doctor. It varies from patient-to-patient but here’s what is generally needed for the common treatment areas:

  • Forehead: Around 20 units
  • Wrinkles: Around 24 units
  • Frown area: Around 20 units

You can expect every 4 units to equal 1 injection. If you’re new to btoo, it’s recommended you begin with as few units as possible. The end goal is to achieve the results you want using as little Botox unit as necessary.

Factors affecting how many units you need

The units of Botox needed depends upon several factors such as the age, weight, gender, skin tone, color, and lifestyle. In general, males need 2-3 units more than females, particularly in the frown lines above the nose since men’s muscles tend to be tighter in that area.

Since these factors vary for every person, the best way to know how many units of Botox you need is to consult a specialist.

How long after treatment will I see results of Botox?

It might take a few days to see a noticeable improvement in your wrinkles and frown lines. On average, around 5-7 days is a good time to see the expected changes. In general, the treatment lasts for about 3-6 months. As muscle action slowly returns, the lines and wrinkles begin to reappear and need to be treated again. However, the effects of the first treatment could wear off sooner and you may need follow-up treatments.

How does Botox work?

Botox reduces the appearance of frown lines and wrinkles because it temporarily blocks the signals from the nerves to the muscles, paralyzing the specific muscles. When injected into the specific treatment area, it stops the muscle from contracting which makes wrinkles and frown lines relax and soften.

One important thing to keep in mind is that Botox won’t help in case of wrinkles caused by sun damage or gravity.


To recap, it is better to use as few units of Botox as you need to get the expected results. Although the units required generally vary from 20-24 per area, a specialist is best qualified to determine the number of units you need to restore your youthful appearance in the safest way possible.

So, always consult with a doctor and understand the complete implications of the procedure before getting it done. They’ll always have the best suggestions for you.