Botulinum toxin is an injectable Onabotulinum toxin A which temporarily relaxes the facial muscles by preventing the nerve signals from being sent to the muscles. It is used medically to treat certain muscular conditions and cosmetically to remove fine lines and wrinkles. This is a non-surgical treatment to achieve the desired result with just one session.
You may experience mild discomfort over the injection site, but it will improve within 24-48 hours.
It can be done every 3-4 months or touched up once the lines reappear. Do note that there is a maximum dosage of botox. You may need to consult your doctor before treatment.