Botulinum toxin commonly known as botox, if injected into the facial mimetic muscles, creates a temporary weakening and reduces contractile activity, thus mitigating expression wrinkles.
Type A botulinum toxin is used for the upper part of the face; particularly horizontal wrinkles on the forehead, vertical ones between the eyebrows, and for crow’s feet around the eyes.
The treatment consists of an injection of minimal amounts of this drug into specific parts of the face, to reduce the strength and continued activity of the muscle which causes mimetic wrinkles.
Using a very small needle, a minimal quantity of botulinum toxin is injected into the target muscles to temporarily relax them.
The treatment will start to give considerable results after 4-5 days when the wrinkle muscle relaxation process starts, and reaches its maximum effect after a month, then lasting for another 3-4 months, finally, slowly disappearing thereafter. The treatment must be repeated after at least 3 months to avoid the muscle regaining its contractility.
There are no undesirable side effects for the use of botulinum toxin: this product has been widely experimented in the ophthalmic and neurologic fields. Absence of allergic reactions to botulinum toxin cannot be guaranteed however, and it would be advisable to avoid use during pregnancy or in individuals with neuromuscular diseases.