Will a temporal brow lift (and possible future extra/revision temporal brow lifts if needed)be able to hold and maintain my brow at the new position for most of the rest of my adult life starting at 18 years old? How long will the lift/s last? I have heard both around 5 years and that it just follows a persons aging for prom the next position. I know it will vary depending on the person and lift but which is more accurate?