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.

The present disclosure provides a device and a method for cooling living tissues for a medical purpose and other purposes. The cooling device comprises: a container configured to accommodate a cooling medium and thermally coupled with the cooling medium by directly contacting the cooling medium; a cooling generator configured to be thermally coupled with the container by a direct contact and thereby to provide cooling energy to the cooling medium; and a heat sink dissipating heat from the cooling generator, the heat sing being configured to be spaced apart from the cooling generator and to be thermally coupled with the cooling generator without a direct contact with the cooling generator.

A beauty device applies an alternating current to the skin surface of a user and changes a frequency while keeping a voltage or the like constant in order to adjust the degree of a bodily sensation. A beauty device includes: an electrode portion that includes two or more electrodes and applies the alternating current between the electrodes; a frequency setting portion that sets the frequency of the alternating current either in multiple stages of three or more stages or steplessly; a sensitivity adjusting portion that adjusts the degree of a bodily sensation of the user; and an alternating current generating portion that outputs the set frequency; in which the frequency setting portion sets the frequency based on the adjustment of the sensitivity adjusting portion to adjust the degree of a bodily sensation.

A multi-functional integrated skin beauty device according to the present invention is formed by comprising a mist treatment part generating sterilization water by electrolyzing water in a water tank and spraying the generated sterilization water in a mist shape, a temperature stimulation treatment part applying a temperature stimulation to skin, an EP treatment part applying an electric signal to an EP electrode; and a light treatment part outputting a light for skin care. A housing forming an exterior appearance of the multi-functional integrated skin beauty device includes a pillar-type handle part graspable by a user with one hand, and a first head part and a second head part protruded from an upper end of the handle part toward both lateral surfaces.

A device for applying electrical stimulation to a surface of the human body utilizes a calibrated, pre-arranged pattern of conducting, current emitting elements to distribute current throughout an entire surface at once, such as human face, without needing to alter the device to accommodate various are sizes, including varying face sizes.

A therapeutic burp cloth having at least one panel and at least one pocket. The therapeutic burp cloth is adapted to be worn by a caregiver while holding an infant. The pockets are adapted to receive heat pads, cold pads and therapeutic inserts for comforting the infant and the caregiver during use.

A method and system in accordance with a particular embodiments of the technology includes applying a substance onto skin of a human subject. A subject's skin can be altered to facilitate absorption of applied substances. A substance can be applied to altered skin so that the substance is absorbed into the skin. The treatment site can be cooled to initiate a freeze event in the skin to freeze tissue. The substance can be a coupling media that promotes or inhibits freezing of tissue.

A method and system in accordance with a particular embodiments of the technology includes applying a substance onto skin of a human subject. An applicator is then applied to the subject to cool a region of the subject. After cooling the tissue, a nucleation initiator is used to initiate a freeze event in the tissue. The nucleation initiator can be an ice crystal that inoculates the skin upon contact to create a predictable freeze event therein. The time of contact between the ice crystal and the skin can be controlled to achieve desired effects.

A method and system in accordance with particular embodiments includes applying a substance onto skin of a human subject. A method for treating a subject's skin includes applying a hydrogel to the skin which contains the substance. The hydrogel and the skin are cooled using a cooling applicator to treat tissue via the cooling treatment by either freezing or not freezing tissue.

A method and system in accordance with a particular embodiments of the technology includes applying a substance onto skin of a human subject. The applied substance can include a freezing point depressant and a liposome, an oil-in-water emulsion, a water-in-oil emulsion, or an oil-in-oil emulsion and can be configured to protect or target tissue. The substance and a surface of the skin can be cooled using the applicator to treat acne and other skin conditions.