Kathy Fields is a prominent American dermatologist and entrepreneur, best known for co-founding the skincare brand Proactiv. She has played a significant role in developing effective acne treatment products that have helped millions of people worldwide. Fields is also recognized for her contributions to dermatology through her research and clinical practice. In addition to her work with Proactiv, Kathy Fields has authored numerous articles and books on skincare and dermatological health. She is a board-certified dermatologist and has been involved in various philanthropic efforts, focusing on skin health education and awareness.