Introduction to BT-Gear Technology Mandatory for esthetics students, optional for cos juniors, seniors, and alumni. An introductory course covering all bt-gear including a brief introduction to the bt-nano. Learn about […]

Introduction to BT-Gear Technology Mandatory for esthetics students, optional for cos alumni. An introductory course covering all bt-gear including a brief introduction to the bt-nano. Learn about the amazing benefits […]