Nonanimal stabilized hyaluronic acid provides a more durable aesthetic improvement than bovine collagen and is well tolerated.

No abstract

A single treatment with BoNT-A (50 U) was significantly superior to placebo in the correction of moderate to severe glabellar lines, with comparable tolerability.

A single treatment with Dysport, with the dose based on gender and muscle mass, is well tolerated and provides a greater and longer-lasting improvement in glabellar lines compared with placebo.