• Allergan Inc., of Irvine, Calif., said it entered a definitive agreement to acquire the topical aesthetics skin care business of privately held SkinMedica Inc., of Carlsbad, Calif., for $350 million up front and an additional $25 million contingent upon the acquired products achieving specified sales levels. The acquisition is set to close later this year and is expected to complement Allergan's existing facial aesthetics business, which includes Botox Cosmetic, Juvederm and Latisse. Allergan said it expects to operate SkinMedica as a separate global business.