Noh masks (能面 nō-men or 面 omote) are carved from blocks of Japanese cypress (檜 "hinoki"), and painted with natural pigments on a neutral base of glue and crushed seashell. There are approximately 450 different masks mostly based on sixty types,: 14 all of which have distinctive names. Some masks are representative and frequently used in many different plays, while some are very specific and may only be used in one or two plays. Noh masks signify the characters' gender, age, and social ranking, and by wearing masks the actors may portray youngsters, old men, female, or nonhuman (divine or demonic) characters.: 13 Only the shite, the main actor, wears a mask in most plays, although the tsure may also wear a mask in some plays.: 13, 260
Even though the mask covers an actor's facial expressions, the use of the mask in Noh is not an abandonment of facial expressions altogether. Rather, its intent is to stylize and codify the facial expressions through the use of the mask and to stimulate the imagination of the audience. By using masks, actors are able to convey emotions in a more controlled manner through movements and body language. Some masks use lighting effect to convey different emotions through slight tilting of the head. Facing slightly upward, or "brightening" the mask, will let the mask to capture more light, revealing more features that appear laughing or smiling. Facing downward, or "clouding" it, will cause the mask to appear sad or mad.
Noh masks are treasured by Noh families and institutions, and the powerful Noh schools hold the oldest and most valuable Noh masks in their private collections, rarely seen by the public. The most ancient mask is supposedly kept as a hidden treasure by the oldest school, the Konparu. According to the current head of the Konparu school, the mask was carved by the legendary regent Prince Shōtoku (572–622) over a thousand years ago. While the historical accuracy of the legend of Prince Shōtoku's mask may be contested, the legend itself is ancient as it is first recorded in Zeami's Style and the Flower written in the 14th century. Some of the masks of the Konparu school belong to the Tokyo National Museum, and are exhibited there frequently. (Wikipedia 2026)