Botulinum toxin is a naturally occurring protein produced by the bacterium Clostridium botulinum. There are currently two different types of botulinum toxin commercially available in the United Kingdom: Type A toxin: Botox (Vistabel), Dysport (Azzalure) and Xeomin (Bocouture) and Type B toxin: Neurobloc.
Botulinum toxin can be used to treat all wrinkles which are the result of normal facial movement. When it is injected into a specific muscle in the face it blocks the signal from the nerve to the muscle. This means that the nerve ending cannot tell the muscle to move, hence there will be less wrinkling of the skin in the areas treated. The upper third of the face is where the best treatment results are obtained, commonly for the reduction in crow’s feet around the eyes and wrinkles on the forehead and between the eyebrows. Depending on the area treated, dose used, and how you respond, repeat treatments will be required around every 3 – 6 months.