A hair extension bar comb retains hair for a coloration or treatment process on an elongated base. In one embodiment, first and second comb teeth rows are respectively mounted in parallel on corresponding laterally spaced apart parallel side regions of the base (typically on a top flat base surface). In use, some teeth of at least one comb teeth row captures extension hair therein. A coloration/treatment process is engaged on captured extension hair in the lateral space between the first and the second comb teeth rows. A floor or table stand may be provided with a mounting coupler on the bottom of the base. A hair extension storage bag is elongated, defining a vertical bag cavity with an upper edge lip closure system. A horizontal bar with a single comb teeth row is mounted in the upper region of the bag cavity. Comb teeth capture extension hair which falls down into the vertical bag cavity. A vertical closure system is also included.

A hair comb contains: a hollow handle and a combing assembly. The hollow handle includes a top fringe, a bottom fringe, two protective extensions, an accommodation chamber, a locking groove, and a fixing orifice, wherein a width of the locking groove gradually reduces from the top fringe to the bottom fringe, and the locking groove has two tilted engagement faces. The combing assembly includes a holder, multiple teeth, multiple springs, and a cap. The holder has a trench, two positioning faces, a protrusion, multiple first apertures, and multiple second apertures. The cap has multiple columns, wherein each of the multiple first apertures is more than and is in communication with each of the multiple second apertures, and each first aperture accommodates each of the multiple teeth and the multiple springs. Each of the multiple teeth has an operation portion, a head, and a ball.

A hair comb contains: a hollow handle and a combing assembly. The hollow handle includes a top fringe, a bottom fringe, two protective extensions, an accommodation chamber, a locking groove, and a fixing orifice, wherein a width of the locking groove gradually reduces from the top fringe to the bottom fringe, and the locking groove has two tilted engagement faces. The combing assembly includes a holder, multiple teeth, multiple springs, and a cap. The holder has a trench, two positioning faces, a protrusion, multiple first apertures, and multiple second apertures. The cap has multiple columns, wherein each of the multiple first apertures is more than and is in communication with each of the multiple second apertures, and each first aperture accommodates each of the multiple teeth and the multiple springs. Each of the multiple teeth has an operation portion, a head, and a ball.

An symmetric-multi-function-concave-operating-edge symmetric-multi-function-operating-tip artificial nail, for being glued to a nail of a finger or a toe, comprising: a base, at least two base edges molded to the base partially along the base perimeter, an extension molded to the base partially along the base perimeter and the extension perimeter, at least two concave operating edges molded to the extension partially along the extension perimeter, and at least two digital-and-mini-icon-and-keyboard-operating tips molded to the ends of the at least two concave operating edges respectively. The at least two concave operating edges are for efficiently being narrow and flexible to provide efficient grips on objects, to absorb vibrations to protect the nerve system of a finger or a toe, and to efficiently apply, spread, and shape lipstick and lip gloss on lips. The at least two digital-and-mini-icon-and-keyboard-operating tips are: for vertically, horizontally, or angledly touching, pushing, striking, activating, or operating multiple digital keys at the same time on a digital keyboard; for vertically, horizontally, or angledly touching, pushing, striking, activating, or operating multiple keys at the same time on a mini keyboard; for efficiently functioning as comb teeth to comb eyelashes and wet or clumping-together eyelashes.

A hair accessory takedown tool includes an elongated cane-shaped main body having a bottom end, a central section, a curved section, and a second end. A first triangular-shaped engagement member having a sharpened tip extends from the bottom end of the main body; and a second triangular-shaped engagement member having a bulbous tip extends downward from the second end of the main body. A plurality of metallic teeth extend downward from the curved section of the main body in a parallel orientation to the central section. A finger indentation is positioned adjacent to the first engagement member, and a gripper is positioned along the central section at a location above the indentation.

A hair accessory takedown tool includes an elongated cane-shaped main body having a bottom end, a central section, a curved section, and a second end. A first triangular-shaped engagement member having a sharpened tip extends from the bottom end of the main body; and a second triangular-shaped engagement member having a bulbous tip extends downward from the second end of the main body. A plurality of metallic teeth extend downward from the curved section of the main body in a parallel orientation to the central section. A finger indentation is positioned adjacent to the first engagement member, and a gripper is positioned along the central section at a location above the indentation.

Hairstyling tool of the comb or hairbrush type, comprising a handle and a body, an electric battery a force sensor, an electronic unit configured to capture and format signals provided by the sensors, a wireless communication means for transmitting data to a remote entity, by means of which information about the movements executed by the tool and the forces it undergoes can be transmitted to the remote entity, the remote entity being able to send information back to the user of the tool about the hair being styled.

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 method, system, and device for measuring and evaluating hair loss over time is disclosed. A instrumented comb device includes a power source, a controller, and associated sensors. The controller receives signals from the sensors, including a contact sensor to detect contact with a scalp and obtain a hair count, and a magnetic compass to determine location on the scalp. The controller includes one or more processors that acquire and record the detected contact information and determined location information as the comb device is stroked over a scalp, and measure hair density based on the contact information and location information. The instrumented comb can communicate with a remote information system or a mobile device for auxiliary processing and display. Machine learning of the remote information system allows for recognizing hair density or prediction of future trends in hair density over time using data recorded by the sensors.