Botox is a Botulinum Toxin Type A. Botox works by temporarily blocking nerve signals to specific muscles, preventing them from contracting, which relaxes the muscles and smooths out wrinkles caused by facial expressions (like frown lines, forehead lines, and crow's feet). It's a neurotoxin injected in controlled doses to "rest" the skin, allowing it to heal and reducing the appearance for of dynamic wrinkles, and is talso used medically for conditions like excessive sweating or muscle spasms.