Handheld, personal skin care systems with detachable skin care elements

A skin care element holder for use with a handheld body having a receptacle, said skin care element holder comprising a substantially circular plate having a diameter between about 20 and about 60 mm, wherein:

• a. said substantially circular plate has:
• i. a first surface arranged and configured for coupling to a skin care element;
• ii. a second surface, opposite said first surface;
• and
• iii. an outer peripheral edge;
• and
• b. said second surface of said substantially circular plate has:
• i. at least one spacer leg extending from said second surface in a direction away from said first surface to support said plate in the receptacle;
• ii. a plurality of engagement arms extending a first distance from said second surface in a direction away from said first surface, at least one of said engagement arms comprising a snap-fit projection for engagement with a recess in the receptacle;
• and
• iii. at least one key extending a second distance from said second surface in a direction away from said first surface, said key being arranged and configured to fit into a notch in the receptacle, wherein said key comprises at least one raised portion extending radially inward from an outer perimeter of said plate;
• wherein said first distance is greater than said second distance.