Botox has been used for more than 20 years to smooth wrinkles and lines in the face. The minimally invasive procedure entails injecting botulinum toxin in the face to relax the tiny muscles in the corners of the eyes and mouth.

Botox is the most popular nonsurgical cosmetic procedure in the country, and men are heading to their dermatologists more and more to have the treatment, too. It’s estimated that more men have more than 500,000 Botox treatments annually.