Wrinkle lines which form on the forehead.
Vertical “11” lines between the brows and horizontal lines across the forehead.
They are formed due to active involvement of the forehead muscles in facial expression, frequent exposure to sunlight, and loss of skin elasticity with age.
Active wrinkles which are visible only with muscle contraction are best treated with Botox injections. Small doses injected in multiple areas of the forehead will significantly reduce active forehead lines.