2 Clinical Trials for Various Conditions
This cross-over design study will evaluate the onset of action, efficacy, and duration of botulinum toxin A treatment on forehead/glabellar rhytid complexes with and without subsequent muscle contraction.
The objective of this study is to determine whether the use of botulinum toxin (Dysport ®) in conjunction with a hyaluronic acid filler (Restylane®) will improve the appearance of wrinkles on the forehead and glabella (area between the eyebrows) better than botulinum toxin alone. These two products have been FDA approved to improve the appearance of facial wrinkles.