Dear Annabel, Sculptra Aesthetic has been used for fine lines and wrinkles in the Decolletage. Sculptra is poly- l-lactic acid which works by stimulating collagen in the body and lasts up to 2 years. It is like creating a thin layer or veneer of collagen under the wrinkled area. It can take more than one Sculptra treatment to optimally correct the fine lines and wrinkles, depending on the condition of the skin. The skin in this area is quite thick. Sometimes combining Sculptra with a skin tightening device like Utherapy is beneficial. I recommend that you have a consultation with a Board Certified Plastic Surgeon, that is highly experienced with treating the décolletage, who can examine you and determine if you are a good candidate. Best wishes, Dr. Richard Swift