... a non-surgical skin refinish procedure by using sterile micro-crystals to abrade or rub off the topskin layer, then ... feature, which is the ability to vacuum back the remaining crystals on the skin. Moderate usage of Micro Dermabrasion, accompany ... Microdermabrasion Machines have a same problem: Crystal clogging. During operation, crystals suddenly stopped, they are jammed in hand piece and crystal ...