BACKGROUND. Decollete wrinkles develop with age. In women more than 35 years of age these wrinkles are still transient, but become permanent at about age 50. In a substantial number of women decollete wrinkles, seems to be associated with an insertion of platysma exceeding the second intercostal space. We report botulinum A toxin therapy of these wrinles in five patients. 

OBJECTIVE. To show the effect of botulinum A toxin on decollete wrinkles. 

METHODS. All five women with decollete lines treated with botulinum A had different varieties of the platysma muscle inserting deep down beneath the fourth intercoastal space. During platysma contraction injection points were marked and a certain dose of toxin was applied. 

RESULTS. Two weeks after therapy a significant improvement of the treated decollete region was observed. 

CONCLUSION. These observations indicated that botulinum A toxin can be an effective and safe method in the temporary management of decollete wrinkles. It should therefore be considered as a new adjuvant treatment in cosmetic decollete rejuvenation.