The bunny-lines are among the most visible wrinkles on the face. They are caused by the nasalis muscle. When it contracts, it pulls the skin of the nose with it, involving dynamic and static wrinkles due to the breaking of the skin. The injections have an action on the hyperactivity of the muscle responsible for bunny-lines. The skin is smoother and less subject to breakage causing static wrinkles. Injections are indicated at the onset of static and dynamic wrinkles called bunny-lines. The treatment can begin as soon as the patient feels embarrassed by these signs of old age. There are no side effects. The result is the improvement of dynamic and static wrinkles, the effect is almost immediate and without downtime.