bt-sonic Microsonic Cleansing Brush (professional grade, water resistant vibrating cleansing brush, gentle enough for sensitive skin and daily use, hygienic silver ion infused silicone head, CE safety tested and manufactured in the USA) The bt-sonic is truly the only cleansing brush you will ever need, designed by the skin experts at Bio-Therapeutic. For almost fifty years, Bio-Therapeutic has pioneered the use of advanced technology in the professional skin care industry; and the bt-sonic brings our award winning expertise to the home regimen, delivering professional grade results with every use. Anatomically optimized triangular cleansing head reaches even the hardest to reach contours of the facial landscape, delivering results in places round brushes simply can’t go. Hygienic, silver ion infused Azul silicone bristles deliver superb cleansing and exfoliating results without stressing the skin the way traditional brushes can. The microsonic waves pulsate at up to 20,000 vibrations per second, dislodging dirt and debris and optimizing the performance of your chosen cleanser or exfoliant. Powerful microsonic motor delivers optimum performance while intelligently extending battery life. Lightweight design with IPX6 water resistance makes this ideal for professional, home and on the go use. Perfect for use in the shower! Bio-Therapeutic is a minority, family owned business based in Seattle, where we design, engineer and manufacture all of our technology in our ISO 9001 / ISO 13485 certified FDA registered medical device manufacturing facility. Engineered for safety, the bt-sonic is CE safety tested. Lightweight design with IPX6 water resistance makes this ideal for professional, home and on the go use. Perfect for use in the shower!