As we age, the cumulative effects of sun exposure, gravity, and repetitive muscle contractions cause fine lines and wrinkles to form in the skin. When we’re young, there’s enough collagen and elasticity for those wrinkles to be visible only when smiling, laughing, squinting, or frowning. But over time, these dynamic wrinkles begin to stick and can be seen even when the face is at rest.
How Does BOTOX Work?
Emotional facial expressions such as smiling, laughing, and frowning create furrows or wrinkles in the skin over time. But a muscle can only contract when a nerve signal reaches that muscle. BOTOX works to temporarily block the nerve signals, preventing contraction of the specifically targeted muscles. Once the tiny facial muscles are relaxed, the skin smooths out and the countenance assumes a more youthful, rested look.