STL Index for: Carruthers A.

The success of botulinum toxin type A (BOTOX®, Allergan Inc.) in the cosmetic arena has acted as a stimulus for the development of other neurotoxins. Herein, we present an overview of botulinum toxin products for cosmetic applications that have received regulatory approval or are under development.

There is no ideal filler, nor will there be a single product that can satisfy all requirements. However, RESTYLANE®, a non-animal, stabilized hyaluronic acid (NASHA, Medicis), is a very versatile augmenting agent. It has been in clinical use for 8 years and experience has shown it to be close to the ideal filler in many respects.

The botulinum neurotoxins (BTX) are an exciting group of therapeutic agents with dramatically expanding clinical indications. The US FDA has approved BOTOX® (BTX-A, Allergan) and Myobloc™ (BTX-B, Elan Pharmaceuticals) for the treatment of cervical dystonia.

Botulinum toxin type-A (BTX-A) is a neurotoxin which blocks presynaptic release of acetylcholine. It interferes with neuromuscular transmission, temporarily paralyzing the affected muscle. Of special interest for dermatologists is the unlabelled cosmetic applications, for conditions such as wrinkles and hyperhidrosis.