Facial expressions are created when nerves release the neurotransmitter acetylcholine, signaling facial muscles to contract. Over time, repeated contractions from smiling, frowning, squinting, and concentrating cause the overlying skin to fold in the same locations, gradually forming dynamic wrinkles such as frown lines, forehead lines, and crow’s feet. As collagen and elastin naturally decline with age, these expression lines become more noticeable and may remain visible even when your face is at rest.
DYSPORT is an FDA-approved neuromodulator that contains botulinum toxin type A. Once injected into facial muscles, it temporarily blocks the release of acetylcholine at the neuromuscular junction, reducing the muscle activity responsible for wrinkles. The targeted muscles relax while the surrounding untreated muscles continue functioning normally. As muscle contractions decrease, the overlying skin smooths, softening existing lines and helping prevent them from becoming deeper.