The lines of the forehead are invariably treated with combinations of Botox and fillers. The use of Botox will prolong the life of the filler. Botox last about 3 months but as time goes by, smaller amounts of Botox are needed to pacify a muscle. For most patient after 2 years of using Botox every 3 months, an appreciable downsize in consumption will be apparent as the muscle as decreased contraction strength permanently. Careful not to atrophy by large doses of Botox is essential as this is permanent damage and is irreversible.
A master injector such as Dr. Ginny Leva will inject you in just the right dose, not to freeze your ability to move but to decrease and soften the lines. further remediation of deep lines will need filler, Belotero and Juvederm are ideal.