It might feel like this wrinkle-busting procedure has been around forever, but it's a relatively recent cosmetic concoction.

At first, it was a procedure for already aged skin. Now 20-somethings are using it to try prevent wrinkles from ever forming.

Norman and Tegan unpack how we got to this point, and the do's and dont's of the procedure.

References:

• The whole truth about botulinum toxin – a review
• Botulinum toxin type A for facial wrinkles - Cochrane review
• Botulinum Toxin and Muscle Atrophy: A Wanted or Unwanted Effect