Sentra Smart Technology Inc. was established July 2015, is committed to professional Cloud Computing, Intelligent Video, Big data analysis and IoT related technologies, by providing the cloud and big-data analysis based detection system to health, beauty salons, and other related industries. In the past, whenever user wants to purchase skin-care or hair-care related products, user usually don’t know how to select one of the best fitting solutions for himself/herself. At the end, user purchase the product which is not suitable for their own usage. Even worse, user feel itchy, swollen and other situation after using those products. Sentra Smart is a company provides design, production and service as one-stop solution to meet customer’s needs.