A neurotoxin, such as Botox, works by temporarily blocking nerve signals to targeted muscles, preventing them from contracting. This relaxation of the muscles smooths out dynamic wrinkles caused by facial expressions—like frown lines, crow’s feet, and forehead lines—resulting in a more youthful, refreshed appearance. The treatment involves a series of small injections and typically takes just a few minutes with little to no downtime. Results begin to appear within 3 to 5 days, with full effects visible in about 1 to 2 weeks, and the smoothing effect usually lasts 3 to 4 months.

$12/u