Botulinum toxin type A for the eyes is the most effective treatment for expression lines (dynamic wrinkles) that appear like crow's feet at the outer corners of the eyes when you smile or squint. Botulinum toxin prevents excessive contraction of the orbicularis oculi muscle, softening the folds that form on the skin when you make expressions.
The effect usually appears within a few days to one week after the procedure and generally lasts about 3 to 5 months, requiring periodic repeat treatments for maintenance. However, for static fine lines that remain etched even when you are at rest, regardless of expression, muscle relaxation alone has limitations in improvement, so treatments that address the skin's own elasticity and collagen are considered together.



