1-Crystal Microdermabrasion 2-Diamond Dermabrasion 3-Auto-Clean Diamond Peel Machine BD-16 Functions:a. Improve duck yellow, oily skins, ... speckles, tiny wrinkles, wrinkles, pock and etc. 1. Crystal Microdermabrasion This unit provides a non-surgical skin refinish procedure by ... dead skin back up. 3. Auto-Clean A lot of Microdermabrasion Machines have a same problem: Crystal clogging. During operation, ...