
Yurie Nishiumi spent seven years at a major cosmetics manufacturer, where she was involved in the development of new products and technologies across a wide range of categories, including skincare and makeup. She specialized in the technical development of products such as foundations, eyeshadows, and lipsticks, and has extensive experience working on products for both the Japanese market and international markets. She currently works at mybest, where she conducts comparative testing on more than 1,500 cosmetic products each year. Drawing on the knowledge she gained in product development, she creates content that explains ingredients and formulation backgrounds in a clear, accessible way, with a strong focus on helping users understand even technical details.