Resurfacing: Prepare for complete skin overhaul with these skin retexturizing devices.Nurse Jamie and Glo Pro's microneedling tools use steel micro-tips to trigger collagen production, tighten skin and decrease fine lines by creating microscopic injuries that the body then repairs while Ziip's handheld nano-current device (which is linked to your iPhone) delivers electrical facials geared toward firming the skin, as well as improving acne and anti-aging.