Embodiments are provided that include devices configured to gently exfoliate or remove the upper layers of a user's skin known as the epidermis. The various embodiments provide a skin exfoliant applicator such as a skin-exfoliating face mask that includes multiple modular partitions having varying strengths of exfoliant. These partitions may be applied to different portions of a user's anatomy in a customized configuration. The various embodiments thus enable a customizable skin-exfoliating experience that addresses and accommodates for variations in the epidermis and reduces the likelihood of over exfoliation of sensitive skin.