After gaining experience in insurance-based dermatology as a board-certified dermatologist by the Japanese Dermatological Association, Dr. Imaizumi went to the United States to study cosmetic medicine. Upon returning to Japan, she served as the Director of Noage Clinic for Dermatology and Plastic Surgery at Tokyo Midtown and was recognized as a certified trainer for injectable treatments by Allergan Aesthetics and Galderma.

In 2018, she founded Imaizumi Skin Clinic, where she has been dedicated to developing skincare products containing stem cell ingredients, including THE A, and promoting the safe use of injectable cosmetic treatments.