When are botulinum toxin injections appropriate?
Botulinum toxin is used in this context to relax muscles that (when contracted) lead to the appearance of expression lines on the face :
– frown lines (between the eyebrows)
– crow’s feet lines
– lines on the forehead
Once injected, the muscles are no longer able to contract to the same degree, the skin relaxes, lines soften and may even disappear in some cases