Cartessa AestheticsProducts & Press ReleasesHomeCartessa Aesthetics' PhsiqCartessa Aesthetics' Phsiq uses STEP technology to provide body contouring treatments.HomeCartessa Aesthetics PhsiqPhsiq uses STEP technology to provide body contouring treatments.Articles & NewsHomeCartessa Aesthetics Introduces Classys’ Everesse to US Skin Tightening & Rejuvenation MarketCartessa Aesthetic has partnered with South Korean Manufacturer Classys, Inc. to introduce the Everesse for skin tightening.