A dispenser head for mounting to a container body has a storage cavity to contain a predetermined volume of agent, wherein the dispenser head comprises an inserting portion adapted for slidably inserting into the container body to communicate with the storage cavity, and a head housing defining a dispensing opening extended from the inserting portion. A ball dispenser is rotatably disposed at the head housing, and a retention seat is provided at the head housing to substantially retain the ball dispenser at a position wherein the ball dispenser is rotatably received in the head housing for contacting with the agent and a portion of the ball dispenser is exposed from the head housing, so that the spherical applying surface of the ball dispenser is adapted for evenly contacting with the agent to be applied to user.