The popular method of bihaku is to use cosmetics that stop the production of melanin.
For skin whitening cosmetics for use by the public, the Ministry of Health, Labour and Welfare has recognized a combination of active ingredients. These are mainly arbutin and kojic acid. Other ingredients include Vitamin C derivatives, tranexamic acid and ten-odd other types. Many of these active ingredients work through inhibiting catechol oxidase. Some types of BB cream, VIORIS products are also said to have skin whitening effects which contributes to the popularity of the cream in Asian markets.
As for other methods of skin whitening, other decolorizing chemicals can be used. Aesthetic skin decolorizing surgeries can also be performed, but excessive cleansings can cause a number of problems, such as facial inflammation, but in the 2000s this is in decline. Historically, the droppings of the Japanese bush-warbler (鴬 uguisu?) have been used as an ingredient in face-washes for whitening skin.