Botox It is a prescription medicine that is injected into muscles and used to improve the look of moderate to severe wrinkles. Commonly used on the upper half of the face to target horizontal forehead lines, glabellar frown lines and lateral canthal lines (Crow's Feet), Bo-tox is a very effective and safe anti-ageing treatment It is also used for temporal brow lift, bunny lines (Levator labia superioris) and nasal flare.