So that's it! Smoking at an early age! Do you know that smoking can speed up the normal aging process of one's skin, contributing to wrinkles? These skin changes may occur after only 10 years of smoking. The more cigarettes one smokes and the longer one smokes, the more skin wrinkling she'll likely to have — even though the early skin damage from smoking may be hard for her to see.
As for the botox, well, my take there is...It is best to start Botox before the wrinkles develop...and that's what I heard before from a plastic surgeon. The reason is that continued stress leads to wrinkles. If one starts Botox early, then she is decreasing the stress on her skin and, thus, helping to prevent wrinkles.