According to an aspect of this disclosure, there is provided an apparatus (42) configured for use with a personal care device (2). The apparatus (42) is configured to provide visual guidance to a user on movement of the personal care device (2) across a body of a subject, wherein the personal care device (2) is configured to perform a personal care operation on a plurality of successive treatment areas of the body by successively moving the personal care device into a plurality of successive treatment positions on the body each corresponding with a respective one of said successive treatment areas. The apparatus (42) comprises a projection unit (22) configured to project a light pattern on to a surface of the body, and a processing unit (46). The processing unit (46) is configured to control the projection unit (22) to project the light pattern on to the surface of the body in a projection position indicative of a next treatment position on the body to which the personal care device (2) is to be moved by the user from a current treatment position on the body.

A photo-bio-stimulation device uses near infrared (NIR) laser illumination of the scalp to promote hair growth with a lightweight user wearable device. All the remaining components are mounted on the concave underside of an outer cap shell. Many VCSEL laser device chips are surface mount soldered underneath of a single large flexible printed circuit. These discrete devices direct a diffused, near uniform flood of 678-nanometer monochromatic laser light deep into the hair roots and follicles across the scalps of its users. Petal shapes along a central spine are cut deep into the side edges of the flexible printed circuit to allow it to be conformed and fixed into a hemispherical dome and attached with dozens of plastic snaps inside the outer shell. This connects inside to a rechargeable battery and power controller. A protective clear covering matching the concave underside is attached along the brims.

A portable hair-removal apparatus (1) is provided, which includes an air-suction mechanism (10). The air-suction mechanism (10) includes a heat-generating assembly (101) and a heat-dissipation housing (102). The heat-dissipation housing (102) is provided with an air outlet (1021). The heat-generating assembly (101) is connected to the heat-dissipation housing (102) and defines at least one air inlet (1022). External air is sucked into the heat-dissipation housing (102) via the air inlet (1022), flows through the heat-generating assembly (101) to reduce the temperature thereof, and is discharged via the air outlet (1021). A short-range air-passing channel is formed by means of the cooperation of multiple components, such that the heat dissipation performance is improved, the size is further reduced by simplifying the internal structure and the portability is improved.

A light therapy bed including multiple LEDs positioned in individually controllable modules is disclosed. The modules of LEDs are configured to have direct contact or in close proximity to the skin or tissue of the user, through an acrylic or similar cover. The LEDs light the surface and underlying layers of tissue for photodynamic stimulation of the cells. Iterations of the device utilize light known to have a bactericidal effect in the case of acne, MRSA, etc. The bed is fabricated and formed in a curved configuration to optimize contact between the LEDs and the skin of a user. Each of the LED modules may be mounted on a PCB in an arrangement to provide even lighting and temperature upon the skin or tissue surface of a user. Each module also has one or more thermal sensors that evenly and quickly heat all of the areas of a user's body.

According to some embodiments, a method of promoting hair growth or hair stimulation in a subject comprises applying vacuum or suction using a handpiece assembly along a targeted portion of the subject's skin surface where hair growth or hair stimulation is desired and providing at least one treatment material to said targeted portion of the subject's skin surface, wherein the application of vacuum or suction helps promote hair growth or stimulate hair.

Various embodiments are described herein that generally relate to a low-level laser therapy (LLLT) device to aid in at least one of the prevention and treatment of hair loss, rejuvenation of hair, and stimulation of hair regrowth for a certain percentage of users. In at least one embodiment, a plurality of emitters and bristles may be arranged in rows on a concave active surface of a housing for facing a treatment surface of the user. In some embodiments, the device is a laser therapy helmet device, wherein a portion of the device rotates relative to the treatment surface during use. In at least some embodiments, the device may further comprise a plurality of modes of operation for delivering different amounts of energy to the treatment surface.

System and methods for treating and shaping a keratin fiber are provided. A light-based system includes an activation system configured with one or more light source. The light source is configured to apply electromagnetic radiation at a target region including the keratin fiber. The light-based system applies the electromagnetic radiation to the target region to effectuate photocrosslinking with the assistance of a photosensitizer on the keratin fiber and transition the keratin fiber from a first physical state to a second physical state.

A method of dermocosmetic treatment for skin tissue includes a plurality of treatment laser light sources which are in communication with a rectangular-shaped optical fiber; the optical fiber includes a proximal end to receive laser light from the plurality of treatment laser light sources and a distal end to transmit overlapping laser light to the area of skin tissue to be treated; the plurality of treatment of laser light sources are activated to impinge one or more rectangular-shaped laser light images within one or more rectangular-shaped areas.

An apparatus and method for photodynamic therapy or photodynamic diagnosis using an illuminator comprising a plurality of light sources generally conforming to a contoured surface and irradiating the contoured surface with substantially uniform intensity visible light. The light sources may comprise generally U-shaped fluorescent tubes that are driven by electronic ballasts. The spacing of the U-shaped tubes is varied to increase the output at the edges of the illuminator to make the output more uniform. Also, different portions of the tubes are cooled at different amounts, to improve uniformity. A light sensor monitors output from the U-shaped tubes to provide a signal for adjusting the output from the tubes.

A phototherapy device includes a high intensity light source secured to a leaky light conducting fiber to leak light along the length of the fiber. The light fiber is illuminated at either or both ends by the light source and the light fiber is generally oriented in a 3-D spiral pattern to form a dome of light to provide phototherapy to an area of a patient's scalp to be treated. A generally hemispherical shell is formed of a first or inner translucent diffuser layer secured to a second or outer reflective layer, the first and second layers encapsulating the 3-D non-overlapping spiral pattern light fiber. A control system is also provided to turn off the light source when a break or discontinuity occurs in the fiber.