A fluid dispenser, such as a skincare product dispenser, comprises a dispenser housing configured to hold a reservoir of fluid for dispensing and a drive assembly for interacting with the reservoir and causing dispensing of the fluid. A fluid detection sensor is positioned within the dispenser housing proximate the reservoir and configured to detect a capacitance level therein. A controller is configured to determine, based on data from the fluid detection sensor, a change in the fluid level across a dispense. The controller is also configured to determine, based on the determined change, that the fluid level in the reservoir reaches a threshold level and cause an action, such as providing an alert, sending information to a remote server, or modifying an operating parameter.