Assessing the Impact of Botulinum Toxin Type A on Facial Wrinkles A Comprehensive Clinical Investigation

Inclusion Criteria:

• Individuals of both genders.
• Must be in good physical health.
• Age between 20 and 65 years.
• Presence of both static (unchanging) and moderate dynamic (movement-induced) wrinkles on the forehead or glabellar region.
• Must possess the willingness and ability to understand and provide informed consent, as well as effectively communicate with study personnel.

Exclusion Criteria:

• Pregnant or breastfeeding female.
• Age below 20 or above 65 years.
• History of neuromuscular disorders, such as myasthenia gravis.
• History of facial surgery or presence of scars in the treatment area that could potentially interfere with or confound the results of the study.
• Recent treatment history within the past 6 months in the forehead or glabellar region, including:
• Ablative laser procedures.
• Radiofrequency device treatments.
• Ultrasound device treatments.
• Medium to deep chemical peels.
• Temporary soft tissue augmentation.
• Semi-permanent soft tissue augmentation within the past 2 years.
• Permanent soft tissue augmentation.
• Planned cosmetic procedures within the next 6 months in the same region.
• Intended use of tretinoin or retinoic acid within the next 6 months.
• Presence of active infection in the treated area, excluding mild acne.
• Allergy to cow's milk protein or albumin.
• Use of aminoglycoside medications.
• Current use of anticoagulation therapy.
• History of bleeding disorders.
• Diagnosis of mental illness.
• Inability to comprehend the study protocol or provide informed consent.