ZERO GRAVITY has invested a great deal of time and resources in the development of the anti-aging and pain relief Perfectio X® device. In order to prove the the efficiency and safety of all ZERO GRAVITY products, independent clinical study was conducted by Princeton Research Division in Princeton, New Jersey.
การศึกษาทางคลินิกเกิดขึ้นเป็นเวลา24สัปดาห์, กับ๙๐วิชา.