I'm not 100% sure if I spelled it right but what is concealer? like makeup if there's a different meaning for it lol. Will it cover zits? I have tons of zits but I don't want anything harsh on my skin I'm 13 and have very fair skin. Thanks!

Yeah I was told by somone else it was not for my whole face. Anyone know the price of a GOOD one? my sister sells Mary Kay is theres any good? or do they even have any?