Brand new, used less than five times. This machine increases collagen, improves facial and body contour, tone, and reduce the appearance of fine lines and wrinkles. MLAY radio frequency machine converts electrical energy into heat energy which goes deep into the dermis to increase the temperature( 55°F - 65°C/131°F -149°F), accelerate the blood circulation of dermis and subcutaneous tissue, to stimulate and reshape the skin collagen to achieve multiple cosmetic effect. All the processes are safe and painless