The upper face is a complex and dynamic part of the face, which conveys facial expression and emotion. As one age, youthful dynamic facial lines on the forehead and glabella change to static wrinkles, which remain on the face at rest. These permanent wrinkles can lead to the appearance of fatigue and negative facial expressions such as anger, which may influence psychological wellbeing, social confidence, and self-esteem. Forehead wrinkles are due to a combination of genetic and environmental factors, especially damage ultraviolet light. The contributions of both must be analysed when patients attend for treatment. Make sure too that they do not expect the ablation of furrows as this requires carbon dioxide laser resurfacing for maximum effect. Botulinum toxin is widely known to be an excellent treatment for smoothing out both vertical and horizontal forehead lines. Patients often ask for it to be used to treat their vertical (glabellar) frown or their horizontal lines or put in a general request for improvement.