Abstract: A phototherapy hairpin comprising a hairpin body with a head and a rod. The head includes a mounting cavity, a lamp board configured to emit therapeutic light, and a light-transmitting shell covering a light emission hole, wherein the light-transmitting shell contacts human skin to provide phototherapy and massage. The rod is configured to secure a hair bun and includes light-emitting units oriented toward the scalp to provide scalp phototherapy. One or more sensors detect whether the device is secured in hair or held in hand, and a control board automatically activates the appropriate phototherapy unit based on the detected mode. The distal tip may include a storage chamber for dispensing therapeutic substances or a second stimulation element. The device integrates phototherapy, massage, and optional thermal, magnetic, or microcurrent stimulation in a compact, wearable form.

Abstract: Embodiments of the present invention provide a multifunctional oral care device comprising a lip care assembly and a tooth care assembly that can be detachably connected or used independently. The assemblies include light therapy components configured to emit specific wavelengths for lip and oral treatment. The device further includes an orientation detection module for mode switching, dual or synchronized control units with detachable power supplies, and optional intermediate layers for irradiating inner lip surfaces. A nasal care phototherapy device can also be connected through an auxiliary interface for combined facial or oral therapy.