Trophy Skin  rolled out an at-home, portable, microdermabrasion system said to increase efficacy by following a professional protocol. Unlike other at-home microdermabrasion tools that use a crystal tip, RejuvadermMD ($199) uses a diamond, which ensures users have affordable and convenient access to the kind of results typically derived from a doctor’s office or spa, said the company.   More info: www.trophyskin.com  ...