How to use : Shake well before use, apply an appropriate amount to your scalp, and rub it with your fingers and massage smoothly everyday USAGE TIPS: Wash the scalp thoroughly with shampoo, dry it more than 70% and apply an appropriate amount tapered hairs to absorb it. it is more effective to use an electroporation device to absorb it<br />Hair root strengthening LED Scalp Therapy Device for Anti Hair Loss Volume Booster is a scalp home-care device that adds a special electro-poration function to LED therapy technology among trendy home care beauty devices.<br />1) LED Therapy ? Volume booster is available for customized care for scalp troubles with three LED lights and near infrared rays. – RED LED : 600~700mm / Root elasticity reinforcement – BLUE LED : 405~415mm / Sensitive scalp sedation – RED+BLUE LED : 800~900mm / Complex care 2) Electroporation ? – It is a method of instantly applying electrical pulses to the surface of the skin to create a hole where molecular units can penetrate and push nutrients into it. – In other words, it is a technology that maximizes the absorption of active ingredients of cosmetics and expects a higher absorption rate than when applying ample with hand. 3) Micro Vibration ? – 9,000 micro-vibrations per minute! – Three vibrating wavelength modes: RED, BLUE, and GREEN stimulate the scalp to provide massage effects around the hair follicle Features: 1) Helps prevent and prevent hair loss with 3 functions(LED Therapy / Electroporation /Micro Vibration) 2) Rated voltage: 3.7V, 600mAh 3) Wireless use after USB charging">