Abstract: According to an aspect of the present disclosure, an apparatus for determining a skin condition or skin type of a user based on an artificial intelligence technology may be provided. The apparatus according to the present disclosure may comprise one or more processors; and one or more memories configured to store instructions that, when executed by the processor, cause the one or more processors to perform calculations, and an artificial neural network constructed through modeling of a correlation between a plurality of images for skin of a plurality of users and scores for a plurality of survey questions included in a survey about skin provided to the plurality of users.

Abstract: Disclosed is a skin treatment device including a treatment unit inserted into skin to stimulate the skin, a holder unit for detachably mounting the treatment unit thereonto to transfer a signal to the treatment unit, and a handpiece unit for mounting the holder unit thereonto to supply the signal to the holder unit, thereby rapidly exchanging the treatment unit.