What it is: An ultrasoft skin-care cleansing and massaging device in a small size that's perfect for taking on the go.What it does: LUNA 4's little sister, palm-sized LUNA 4 go is clinically proven to remove 99% of dirt, oil and makeup residue. It's perfect for the times when you really need to cleanse your skin while out and about-after sweating at the gym, sleeping on a flight or lying on the beach. It uses T-Sonic™ pulsations and velvety-soft silicone touch points to remove impurities trapped deep within pores. It is clinically proven to remove 99% of dirt, oil and makeup residue, and is 35 times more hygienic than brushes with nylon bristles. The battery has been upgraded for up to 300 uses per charge, so you don't have to worry about running out of battery mid-trip. It also features a new travel-lock option. Bacteria-resistant to reduce breakouts, the LUNA 4 go also gently exfoliates the skin, removing dead skin cells to reveal fresh, healthy skin below. After cleansing, you can flip the device over for a firming massage that uses low-frequency pulsations to improve lymphatic drainage and help reduce fine lines and sagging. How to use: Dampen your face and apply your face cleanser. Wet the LUNA 4 go and press the universal button to turn on the device. Adjust the intensity of the T-Sonic pulsations with the + and - buttons. Glide the front of the device in circular motions around your face and neck. Rinse face/neck and device. Apply FOREO's Serum (sold separately), then turn on device and double-press the universal button to activate firming massage. Gently glide back of device in straight upward lines across your face and neck. Includes device, USB charging cable and quick-start guide. 300 uses per charge