RF Micro-Needling 7D Facial Anti-aging Machine Acne Scars Removal Skin Care DeviceSpecifications: The penetration depth of the needle is 0. 2 3. 5 mm. Feed rate 0. 1 0. 5 s. Needle output power 10 200 watts. Device for microneedle fractional RF lifting The action consists in conducting high frequency current (RF energy) into the deep layers of the epidermis, affecting collagen molecules and subcutaneous fat. This therapeutic effect stimulates the production of collagen and elastin, which give the skin firmness, elasticity and