The invention features a hand held device that dispenses fluid during operation. The hand held device includes a handle and a device head operably engaged thereto. The handle has a proximal end forming a product dispensing aperture, a distal end forming a cavity for housing a fluid, a supply channel in fluid communication with the cavity and the product dispensing aperture, a peristaltic pump physically engaged with the supply channel, and a flexible barrier that rests between the peristaltic pump and the supply channel preventing direct contact of the supply channel by the peristaltic pump. Actuation of the peristaltic pump displaces fluid from the cavity to the product dispensing aperture.