Saito Clinic is an internal medicine clinic located in Minami-Aoyama, Minato City, Tokyo. For fee-paying services, they offer cellular function regeneration therapy on Tuesdays, Wednesdays, and Fridays from 12:00 to 16:00, which primarily consists of intravenous treatment with human stem cell culture supernatant. They also provide scalp regeneration and hair growth treatment, which is a treatment method centered on local injections of human stem cell culture supernatant. Special outpatient services for physicians are also available. They are characterized by their ability to provide services in English and their acceptance of credit cards and electronic payments.