Botox works wonders on smoothing away wrinkles between the brows and on the forehead. On the crow's feet or peri-orbital creases, it makes them not as deep when you smile. For most people, Botox lifts the brows and produces a relaxed, refreshed, energetic appearance to the face.
It lasts about three months on the brow and forehead, and about two months on the crow's feet area. Duration of effectiveness can vary without explanation. If you have another treatment before the last treatment wears off fully, you may find it starts lasting longer, up to five months for some patients.
Botox is ineffective on approximately 1% of the population. Although rare, resistance to Botox can develop over time in some patients.
It takes five days for a treatment to take effect, and two weeks for it to be fully in effect. If a treatment needs adjustment, it is best to wait two weeks before adding units.
Average units needed:
Brow 20 units
Forehead 10-20 units
Crows Feet 10-30 units
Men generally require more units.