Comparison of Two Botulinum Toxins Type A on Forehead Wrinkles

Inclusion Criteria: 1. Female Subjects of any race, from 18 to 65 years old 2. Moderate to severe horizontal forehead wrinkles at maximum contraction (2-3 on the Forehead Wrinkles Severity Scale) on both sides of the forehead 3. Negative urine pregnancy test at the Baseline visit for Subjects of childbearing potential Exclusion Criteria: 1. Subjects with a washout period for procedure(s)/treatment(s) on the forehead less than: * Retinoid, microdermabrasion, or prescription level glycolic acid treatments 2 weeks * Non-ablative light treatments (e.g. Intense Pulsed Light, light-emitting diodes) 1 month * Ablative skin resurfacing * Non-ablative dermal treatment for skin tightening (e.g. radio-frequency treatments) 6 months * Treatment with a BoNT-A 12 months * Soft tissue augmentation (e.g. biodegradable products as collagen or hyaluronic acid preparations) 24 months 2. Subjects who undergone a surgical facelift; 3. Permanent or semi-permanent dermal fillers in the forehead area; 4. Known allergy or hypersensitivity to any botulinum toxin or any component of BoNT-A (1) and/or BoNT-A (2) (see package inserts); 5. Concurrent use of treatments that affect neuromuscular transmission, such as curare-like depolarizing agents, lincosamides, polymyxins, anticholinesterases affecting the striated muscle and aminoglycoside antibiotics; 6. Pregnant women, nursing mothers, or women who are planning pregnancy during the study;