Botox Betty really believes that huh?
Beauty's only skin deep, but the effects of Botox might not be. Matteo Caleo of Italy's Institute of Neuroscience in Pisa has found that botulinum toxin - which is used as a cosmetic anti-wrinkle treatment - can travel down nerve fibres and into the brain within days.
http://www.newscientist.com/article/mg19826503.700-effects-of-botox-are-more-than-skin-deep.html