I've used Colgate toothbrushes my whole life and they've made my gums bleed and never really surprised me. They were a safe bet always and that was all. I picked up this tooth brush on a whim and oh my! My teeth feel like they just got cleaned at the actual dentist! No pain or bleeding and my teeth feel silky smooth! I brush my teeth twice a day and I floss. I am amazed at the difference it made! My teeth are also noticeably whiter even after one brush!