PROTOUCH Brushing Duo Pack | Ultrasonic Toothbrush and Hi-Shine Toothpaste | 360° Mouth Cleansing, Teeth Whitening, Cavity Prevention and Superior Cleaning | Charcoal

With some days of usage, I feel a little change. It helps in improving the teeth color. It will take sometime since the yellowness is accumulated for so much time. Loved the concept of effortless brushing.