Botox for Laugh Lines

Botox for Laugh Lines

Botox for Laugh Lines

Laugh lines and crow’s feet might sound cute, but for many, they’re an unwelcome sign of aging. These fine lines, found at the outer corners of our eyes, are evidence of years of laughing, squinting, and living life to its fullest. If you’re looking to smooth out these lines, Botox is a popular choice. Let’s explore the nuances of using Botox for laugh lines, or as others may say, Botox for crows feet. We will compare other treatments like dermal fillers for laugh lines and how many units of botox for crows feet are required for optimal results.

What are Laugh Lines, or Crow’s Feet?

Crow’s feet, also termed ‘laugh lines’ or ‘character lines’, are the series of fine lines that emanate outwards from the outer corners of our eyes. They’re often the first wrinkles to appear, given the thinness of the skin around our eyes and the frequent muscle activity in that region.

The Science Behind Botox

Botox – short for Botulinum toxin – is a purified protein that, when injected in small amounts, can temporarily relax the muscles. By doing this, Botox smoothes the wrinkles caused by repeated muscle contractions, such as the muscles surrounding laugh lines .

How Does Botox Work?

When injected, Botox blocks the signals from nerves to muscles, thereby reducing muscle activity. With reduced activity, the skin starts to smooth out and the appearance of wrinkles decreases1.

Botox vs. Fillers for Laugh Lines

While Botox targets the muscles that cause wrinkles, fillers for laugh lines work differently. Fillers are gel-like substances that are directly injected into the skin to restore lost volume or fill deep-set lines.

For laugh lines, Botox is typically the preferred treatment because these wrinkles are caused by muscle activity. Fillers, on the other hand, are often more suitable for static wrinkles (those present even when the face is at rest), like the Nasolabial folds – creases in your skin extending from both sides of your nose to the corners of your mouth2.

Thus, Fillers for laugh lines may not be the best option.

Determining the Right Units of Botox for Crows Feet

The units of Botox needed vary based on:

  • The patient’s gender: Men typically require more units due to stronger facial muscles.
  • The depth and extent of the wrinkles.
  • The desired effect: Some patients wish for a completely smooth look, also sometimes called frozen face, while others prefer a more natural outcome.

On average, 5-15 units of Botox per side are how to get rid of laugh lines. However, always consult with a licensed dermatologist for a tailored approach3.

The Procedure & What to Expect

The treatment is quick, usually taking under 15 minutes. The dermatologist will:

  • Clean the area.
  • Mark the injection sites.
  • Administer the Botox using a fine needle.

There’s minimal discomfort, often described as a brief pinching sensation.

Results become visible within 3-7 days post-treatment and can last between 3-4 months, after which repeat treatments may be required for maintained results.

Side Effects and Aftercare

Like all medical procedures, there are potential side effects, though Botox side effects are generally mild. These include:

  • Temporary bruising or redness at the injection site.
  • Headache.
  • Eyelid drooping (rare).

Post-procedure, it’s advised:

  • To avoid rubbing the treated area for 24 hours.
  • To refrain from lying down for 4 hours post-treatment.
  • To abstain from strenuous activities for the remainder of the day.


Botox offers an effective solution for those exploring how to get rid of laugh lines. It’s a quick procedure with minimal downtime, delivering noticeable results. While fillers offer an alternative, Botox remains the choice treatment for dynamic wrinkles caused by muscle activity. Always consult with a trusted dermatologist to determine the best treatment approach for laugh lines.


  • Carruthers, A., & Carruthers, J. (1992). Treatment of glabellar frown lines with C. botulinum-A exotoxin. Journal of Dermatologic Surgery and Oncology, 18(1), 17-21.
  • Goldberg, D. (2006). Breakthroughs in US dermal fillers for facial soft-tissue augmentation. Journal of Cosmetic and Laser Therapy, 8(1), 20-25.
  • Monheit, G., & Pickett, A. (2017). AbobotulinumtoxinA: A 25-year history. Aesthetic Surgery Journal, 37(suppl_1), S4-S11.

Disclaimer: This article is intended for informational purposes only and should not be construed as medical advice. Always consult with a qualified healthcare provider for medical advice and treatment.

Hopefully this article was helpful in your skincare journey.  Welcome to Divine Dermatology, PLLC, your beacon for skin care in St. Petersburg, Florida. Under the skilled guidance of Carol Sims-Robertson, MD, our office celebrates all skin types and ages, curating personalized treatments that enhance your natural beauty.

From teens battling acne to adults seeking anti-aging remedies, we offer innovative solutions that cater to every person’s unique needs. At Divine Dermatology, PLLC, we believe in using our expertise so beauty transcends age and skin type. Trust us to transform your skin, elevating your confidence, and revealing the most beautiful you. 

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