QUASI-DRUG is a unique product classification in Japan. A quasi-drug is defined in Japan as products that minimal or moderate pharmacologic activity but are restricted in use to specific indications. Quasi-drugs in Japan include categories of products that are often described as drugs, cosmetics, or Over-the-Counter (OTC) products in other regions. Products in this class include some energy drinks, vitamin preparations, hair tonics, bath preparations, skin whitening products, acne products, antidandruff shampoos, toothpaste, hair dyes, and many others. These products are considered borderline medicinal products, which are categorized differently in various markets.