Frown lines form when facial expressions are made as the muscle under the skin contracts. Over time, as your skin ages, these repeated expressions cause lasting frown lines. Neurotoxins, such as Xeomin®, are prescription medications that block the release of chemicals that cause these muscle contractions so frown lines are softened.

XEOMIN incobotulinumtoxinA for injection, for intramuscular use, is a prescription medication used to temporarily improve the appearance of moderate to severe frown lines between the eyebrows in adults. it contains botulinum toxin type A, a protein purified from the bacterium clostridium botulinum. Botulinum toxin type A the active ingredient acts on nerve endings in muscles to prevent muscle fibers from contracting. By reducing these contractions, XEOMIN can temporarily reduce the lines on your forehead between your brows.