Abstract: A hair and scalp treatment device includes a dispenser connected to a cartridge, wherein the cartridge comprises a formulation; a plurality of tips on the device, wherein the tips have at least one opening to dispense the formulation and at least one LED that emits light in the visible color spectrum, wherein the at least one LED is located at the end of the tips; and a controller configured to individually turn on and off the LEDs from the plurality of tips.

Abstract: A computer system and the computer-implemented method of generating and providing haircare product recommendations to a subject. The method comprises determining, by a computing device, an exposure amount of a pollutant impacting a subject's hair; determining, by the computing device, a damage assessment of the subject's hair based on the type of pollutant and amount of pollutant exposure; and providing, by the computing device, at least one haircare product recommendation to the subject, wherein the recommendation is directed to repair damage to the hair provided in the damage assessment.

Abstract: A computer system obtains at least one 3D scan of a body surface; automatically identifies, based on the at least one 3D scan, one or more features (e.g., nose, lips, eyes, eyebrows, cheekbones, or specific portions thereof, or other features) of the body surface; and generates a digital 3D model of the body surface. The digital 3D model includes the identified features of the human body surface. In an embodiment, the step of generating of the digital 3D model is based on the at least one 3D scan and the identified features of the body surface. In an embodiment, the digital 3D model comprises a 3D mesh file. The digital 3D model can be used in various ways. For example, output of a manufacturing process (e.g., a 3D printed item, a cosmetics product, a personal care product) can be based on the digital 3D model.

Abstract: A computer system obtains a digital 3-dimensional model of a body surface, such as a human face. Portions of the surface correspond to reference points in the model. The system obtains image data of a personal care device in use as well as image data of the surface on which the model is based. The system calculates a relative location of the device relative to the reference points based on the image data of the surface. The system determines a true position of the device with respect to the surface based on the image data of the device in use, known physical dimensions of the device, and its relative location, even when the device is partially occluded from view. The system may, based on the true position of the device, cause device to perform actions such as application of a cosmetic or administration of a skin therapy.

Abstract: Devices, systems, and methods are provided for applying a cosmetic design to a biological subject. An applicator array device may include a substrate. The applicator array device may include a plurality of applicator elements disposed on the substrate, together defining an applicator array. Each applicator element may include a first electrode, an electroactive polymer layer disposed on the first electrode, and a second electrode, disposed on the electroactive polymer layer. The applicator array device may also include an applicator surface overlying the applicator array. Each applicator element may be configured to switch between a first position and a second position upon application of a voltage to the first electrode or the second electrode, or upon removal of the voltage from the first electrode or the second electrode.

Abstract: A computer system and the computer-implemented method of generating and providing haircare product recommendations to a subject. The method comprises determining, by a computing device, an exposure amount of light impacting a subject's hair; determining, by the computing device, a damage assessment of the subject's hair based on the type of light and amount of light exposure; and providing, by the computing device, at least one haircare product recommendation to the subject, wherein the recommendation is directed to repair damage to the hair provided in the damage assessment.

Abstract: A wearable UV sensor includes a UV pass filter; a UV phosphor material; and a visible light sensing device, wherein the UV sensor is configured to receive light including visible light and UV light, wherein the UV pass filter directs the UV light to the UV phosphor material and the UV phosphor material fluoresces visible light in proportion to the UV light from the UV pass filter, and the visible light sensing device measures the visible light fluorescing from the UV phosphor material to determine the amount of the UV light entering the sensor, which correlates to the UV exposure of a subject wearing the UV sensor.

Abstract: A method of determining a user's exposure to pollution, the method comprising sensing environmental conditions by a detector device, transmitting sensed environmental conditions data from the detector device to a smart device, and alerting the user about personal pollutant exposure by the smart device.

Abstract: The computer system and computer-implemented method of generating and providing skin care product recommendations to a subject, wherein the method comprises determining, by a computing device, a UV-B exposure of the subject; determining, by the computing device, a vitamin D intake due to the UV-B exposure; determining, by the computing device, a target vitamin D of the subject; and providing, by the computing device, a skin care product recommendation to the subject when the vitamin D intake due to the UV-B exposure is less than the vitamin D target of the subject.

Abstract: A computer system and the computer-implemented method of extending the battery life of a personal wearable sensing device, the method comprises determining a current location of the sensing device; determining locations of publicly accessible environmental monitors; determining whether the current location is within a proximity limit to a publicly accessible environmental monitor; and receiving information from the publicly accessible environmental monitor when the current location is within the proximity limit to the publicly accessible environmental monitor to save battery life of the sensing device.

Abstract: Devices, systems, materials, and methods for contouring a volume of hair are described. A hair contouring device can include a contouring source. The contouring source can be configured to generate contouring electromagnetic radiation within a first energy range to induce a conformation change of a hydrogel formulation. The hair contouring device can include a fixing source. The fixing source can be configured to generate curing electromagnetic radiation within a second energy range to induce a photo-curing transition of the hydrogel formulation. The hair contouring device can include an input component. The hair contouring device can also include control circuitry, electrically coupled with the contouring source, the fixing source, and the input component. The control circuitry can be configured to receive an input from the input component and to control the contouring source or the fixing source in accordance with the input.

Abstract: Devices, systems, and methods for applying cosmetic designs to biological subjects are provided. An applicator array device may include a substrate. The applicator array device may also include, a plurality of applicator elements disposed on the substrate, together defining an applicator array. Each applicator element may include an applicator member having a length substantially orthogonal to an outer surface of the substrate, a first portion of the length extending from the outer surface of the substrate and a second portion of the applicator member extending through the substrate. The first portion may define a first end and the second portion may define a second end opposite the first end. Each applicator element may also include an applicator surface defined by the first end.

Abstract: Photochromic formulations including a core material and a photochromic layer overlying the core material and forming a particle are provided. The photochromic layer may include a plurality of photochromic materials, including a first photo-responsive pigment characterized by reversible diffuse reflectance at a first central wavelength from 490 nm to 520 nm in response to irradiation by photons of a first characteristic wavelength, a second photo-responsive pigment characterized by reversible diffuse reflectance at a second central wavelength from 570 nm to 590 nm in response to irradiation by photons of a second characteristic wavelength, and a third photo-responsive pigment characterized by reversible diffuse reflectance at a third central wavelength from 450 nm to 495 nm and a fourth central wavelength from 625 nm to 740 nm in response to irradiation by photons of a third characteristic wavelength. The first, second, and third characteristic wavelengths may be different.

Abstract: Devices, systems, and methods are provided for applying a cosmetic design to a biological subject. An applicator array device may include a substrate. The applicator array device may include a plurality of applicator elements disposed on the substrate, together defining an applicator array. Each applicator element may include a first electrode, an electroactive polymer layer disposed on the first electrode, and a second electrode, disposed on the electroactive polymer layer. The applicator array device may also include an applicator surface overlying the applicator array. Each applicator element may be configured to switch between a first position and a second position upon application of a voltage to the first electrode or the second electrode, or upon removal of the voltage from the first electrode or the second electrode.

Abstract: A computer system obtains at least one 3D scan of a body surface; automatically identifies, based on the at least one 3D scan, one or more features (e.g., nose, lips, eyes, eyebrows, cheekbones, or specific portions thereof, or other features) of the body surface; and generates a digital 3D model of the body surface. The digital 3D model includes the identified features of the human body surface. In an embodiment, the step of generating of the digital 3D model is based on the at least one 3D scan and the identified features of the body surface. In an embodiment, the digital 3D model comprises a 3D mesh file. The digital 3D model can be used in various ways. For example, output of a manufacturing process (e.g., a 3D printed item, a cosmetics product, a personal care product) can be based on the digital 3D model.

Abstract: Systems and methods for application of cosmetic designs are described. In an embodiment, the system includes a visible light mirror, comprising a first portion being at least partially transparent to visible light; a camera, optically coupled with the visible light mirror to receive visible light via the first portion; an illumination source, physically coupled with the visible light mirror and configured to emit a plurality of discrete wavelength channels; and a computer system, electronically coupled with the camera and the illumination source, and comprising one or more processors and a non-transitory computer readable storage medium storing instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more methods of the present disclosure.

Abstract: Methods, systems, and devices for integrated photo-responsive contouring treatment are described. Methods include identifying a region of skin corresponding to a contouring treatment of the skin. The region of skin may be provided with a photo-responsive material overlying a portion of the region of the skin. Methods may include identifying one or more treatment regions overlapping the photo-responsive material. The treatment regions may be identified at least in part to apply the contouring treatment. Methods may include determining an irradiation profile for each of the one or more treatment regions to contour each respective treatment region as part of applying the contouring treatment. Methods may also include irradiating the photo-responsive material at the one or more treatment regions in accordance with the respective irradiation profiles. Irradiating the photo-responsive material may induce a localized change in shape of the photo-responsive material in the respective treatment regions.

Abstract: Systems and methods for application of cosmetic designs are described. In an embodiment, the system includes a visible light mirror, comprising a first portion being at least partially transparent to visible light; a camera, optically coupled with the visible light mirror to receive visible light via the first portion; an illumination source, physically coupled with the visible light mirror and configured to emit a plurality of discrete wavelength channels; and a computer system, electronically coupled with the camera and the illumination source, and comprising one or more processors and a non-transitory computer readable storage medium storing instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more methods of the present disclosure.

Abstract: A computer system obtains a digital 3-dimensional model of a body surface, such as a human face. Portions of the surface correspond to reference points in the model. The system obtains image data of a personal care device in use as well as image data of the surface on which the model is based. The system calculates a relative location of the device relative to the reference points based on the image data of the surface. The system determines a true position of the device with respect to the surface based on the image data of the device in use, known physical dimensions of the device, and its relative location, even when the device is partially occluded from view. The system may, based on the true position of the device, cause device to perform actions such as application of a cosmetic or administration of a skin therapy.

Abstract: A wearable UV sensor includes a UV pass filter; a UV phosphor material; and a visible light sensing device, wherein the UV sensor is configured to receive light including visible light and UV light, wherein the UV pass filter directs the UV light to the UV phosphor material and the UV phosphor material fluoresces visible light in proportion to the UV light from the UV pass filter, and the visible light sensing device measures the visible light fluorescing from the UV phosphor material to determine the amount of the UV light entering the sensor, which correlates to the UV exposure of a subject wearing the UV sensor.