As the show is aimed at women, the host is most exaggeratedly on the female contestants' side. She often mocks the men, baits them to make them look dumb, and praises the ladies when they ridicule them. The true object of this, however, is to find the most suitable man and make him appear, for if any of the male contestants are mature, they will prove so by not resorting to petty insults. They will good-naturedly take all the ridicule and try to win a 'heart' with charm instead. Most episodes commonly feature a themed format, often involving the contestants (and often, host Penelope Menchaca, as well) in costume; themes used on 12 Corazones include beach-themed episodes in which contestants appear in beachwear, and a beauty pageant-style themed episodes, among others.
