An apparatus for heating depilatory wax includes a reservoir and a collar, the reservoir formed of a resilient, heat resistant material. The reservoir is dimensioned to be received by a heating chamber of a wax warmer. The collar has a lip sized to extend outwardly from a top opening of the reservoir, to catch wax which may otherwise drip between the reservoir and warmer. The reservoir may be flattened for shipment or storage, and may be trimmed to accommodate many sizes of wax warmers. In embodiments, the reservoir and collar are nonstick and may be readily cleaned and reused. In embodiments, the reservoir and collar are formed of silicone. A method of distributing a hair removal kit includes packaging soft wax in bags, flattening and packaging reservoirs and collars, and shipping the kit to a user in an environmentally friendly and cost efficient manner.