Emerging research reveals botulinum toxin injections may help alleviate depression symptoms by altering emotional processing in the brain.
January 24, 2023

Most people know Botox for smoothing wrinkles, but emerging research suggests it may offer unexpected benefits for mental health. Studies show that botulinum toxin injections—whether Botox or Dysport—could help alleviate symptoms of depression when used alongside traditional treatments.
Depression affects millions of people worldwide, causing persistent sadness, loss of interest in daily activities, and diminished motivation. While therapy and antidepressants work for many patients, they don't help everyone. This has led researchers to explore alternative and adjunctive treatments, including an unexpected candidate: botulinum toxin.
The connection between facial muscles and emotions runs deeper than most people realize. When botulinum toxin is injected into facial muscles, it doesn't just reduce wrinkles—it may actually change how the brain processes emotions.
Our facial expressions don't just reflect our emotions; they help create them. The muscles in your face send signals to your brain that influence how you feel. By temporarily relaxing these muscles, botulinum toxin may reduce the brain's ability to reinforce negative emotional states.
This concept isn't new. In 1988, psychologist Fritz Strack demonstrated that people who held a pencil in their teeth (forcing a smile-like expression) found cartoons funnier than those who held a pencil with their lips. The physical act of smiling influenced their emotional experience.²
Recent clinical research supports this theory. A 2021 study by Zhang et al. found that the mood-improving effects of botulinum toxin injections were comparable to sertraline, a commonly prescribed antidepressant.¹ This is remarkable—a cosmetic treatment producing results similar to an established psychiatric medication.
The study suggests that by denervating (temporarily paralyzing) facial muscles involved in expressing negative emotions, the treatment may help interrupt the cycle of depression.
Depression isn't just emotional—it manifests physically through headaches, muscle tension, and chronic fatigue. Botulinum toxin injections in the face and head can reduce muscle tension, potentially alleviating some of these physical symptoms and improving overall quality of life.
People with depression often struggle with negative self-perception, which can worsen their condition. When patients see improvements in their appearance—smoother skin, fewer worry lines—it can positively affect their self-esteem. This boost in confidence may contribute to overall mood improvement, though more research is needed to quantify this effect.
Botulinum toxin injections should never replace traditional depression treatments. This approach works best as an adjunctive treatment—meaning it's used in combination with therapy, antidepressants, or other established interventions.
If you're considering botulinum toxin injections for depression, consult with both your mental health provider and a qualified injector. This ensures your treatment plan is coordinated and safe.
The research on botulinum toxin for depression treatment is promising but still developing. Early studies suggest it may help improve mood by altering emotional processing and reducing physical symptoms of depression. For patients who haven't responded well to traditional treatments, it represents an interesting adjunctive option worth discussing with healthcare providers.
As we learn more about the complex relationship between facial expressions and emotional well-being, botulinum toxin may prove to be more than just a cosmetic treatment—it could be a valuable tool in the broader approach to mental health care.
Phil Wong
January 24, 2023
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