The present disclosure is directed to open hair curlers that may be used with separate hair rollers to create two or more sizes or orientations of curls on the same length of hair. The hair curling systems include a planar body curved around a lateral axis without forming a closed cylinder. The planar body curves to create a cradle in which a complementary hair roller can sit inside. Other examples include an open curler without a distinct cradle that can still accommodate a separate hair roller. When hair is secured around a complementarily configured hair roller which is then secured in the open hair curler, the remaining hair may be curled around the outside of the open hair curler.

A hair roller for wrapping therearound a hair portion is a concave cylinder, which has a normally oval cross section at a top portion and a bottom portion thereof larger than a normally oval cross section at a middle portion thereof of an oval cylinder; an oval cylinder, which has at least one normally oval cross-section, or a concave oval cylinder. The hair roller is optionally provided with a hair-retaining structure formed on the roller body for grabbing the hair portion.

A curling device is useful for styling hair. The device includes a flattened curling section configured to create a zig-zag pattern in the hair being treated. The flattened curling section comprising a flat plate, which includes a wide flat face section and thin side walls around an outside edge of the flat face section.

A curling device is useful for styling hair. The device includes a flattened curling section configured to create a zig-zag pattern in the hair being treated. The flattened curling section comprising a flat plate, which includes a wide flat face section and thin side walls around an outside edge of the flat face section.

A hair roller for wrapping therearound a hair portion is a concave cylinder, which has a normally cross section at a top portion and a bottom portion thereof larger than a normally cross section at a middle portion thereof an oval cylinder; an oval cylinder, which has at least one normally oval cross-section; or a concave oval cylinder. The hair roller is optionally provided with a hair-retaining structure formed on the roller body for grabbing the hair portion.

A hair treatment method for curling a lock of hair using a hair holder. The hair holder includes a tubular body which has an opening located at a first end and an opening located at a second end of the tubular body, and configured to allow a lock of hair be inserted from the first end opening of the tubular body toward the second end opening and to be capable of being rolled up. The method includes inserting a lock of hair into the hair holder, rolling up the tubular body together with the lock of hair inserted therein, so that the number of turns of the lock of hair is less than one, and curling the lock of hair in this wound state. A hair holder in which the tubular body is configured to be wound less than one turn is suitably used in this hair treatment method.

A hair treatment method for curling a lock of hair using a hair holder is provided. The hair holder includes a tubular body into which a lock of hair can be inserted from an opening at a first end of the tubular body toward an opening at a second end thereof, and the tubular body is configured to be capable of being rolled up. The hair treatment method includes inserting a lock of hair into the hair holder, rolling up the tubular body together with the lock of hair inserted in the tubular body so that a large diameter portion that has a tubular shape and forms an outer circumferential portion and a small diameter portion that is located inside the large diameter portion and has a space between the small diameter portion and the large diameter portion are formed, and performing curling while maintaining this wound state.

The invention provides an apparatus for coiling hair having a working end with a plurality of spaced-apart, round monoliths. The invention also provides a method for coiling hair having the steps of bringing an apparatus for coiling hair into contact with hair to be coiled wherein the apparatus for coiling hair has a working end with a plurality of spaced-apart, round monoliths; and moving the apparatus over and through the hair in a circular motion.

The invention provides an apparatus for coiling hair having a working end with a plurality of spaced-apart, round monoliths. The invention also provides a method for coiling hair having the steps of bringing an apparatus for coiling hair into contact with hair to be coiled wherein the apparatus for coiling hair has a working end with a plurality of spaced-apart, round monoliths; and moving the apparatus over and through the hair in a circular motion.

A hair setter apparatus generally includes a housing and a heater assembly having a first heat delivery rail and a second heat delivery rail mounted in the housing in spaced parallel relationship to each other. The apparatus further includes a plurality of hair setters. Each of the hair setters has a central body with opposing web plates spaced from each other to define a mounting slot extending longitudinally of the hair setter and configured to slidably couple the hair setter to one of the heat delivery rails along a longitudinal edge of one of the heat delivery rails. The hair setter is sized relative to the insert opening for insertion of the hair setter through an insert opening and onto the respective one of the heat delivery rails within the interior space of the housing.