Johnson & Johnson will pay $1.1 billion for Mentor Corp., a Santa Barbara, CA maker of PurTox, a wrinkle remover that competes with Allergan’s Botox product. Mentor also manufactures breast implants and other medical devices. Up to now, Allergan largely has had the wrinkle remover market to itself. But more competitors are on the way. Scottsdale-based Medicis Pharmaceutical Corp. and France’s Ipsen SA are awaiting a Food and Drug Administration decision on wrinkle remover Reloxin....