Methods and systems are disclosed for removing a tattoo from a subject's skin by application of a cold plasma that is delivered via a liquid-gas mixture. The plasma can be delivered in the form of gas bubbles, in which at least a portion of gas is in the form of a plasma.

Methods of treating the skin and in particular removing pigment from a tattoo are provided. In preferred embodiments, a piezoelectric transducer is placed at a plurality of locations above the skin and focused acoustic waves at 7 MHz or more are transmitted into the skin. The focal point of the focused acoustic waves is between 0.1 mm and 5 mm below the surface of the skin. The design of the piezoelectric transducer along with the frequency of operation are carefully chosen to create points of treatment with a desired size and shape. The correct amount of energy is supplied to the points of treatment to produce a lesion of a desired size and shape. The lesions are spaced and located to effect the treatment of the skin.

A device for providing a dermatological treatment, the device includes a device body, a radiation delivery system for delivering radiation to the skin to provide a dermatological treatment, and a situation-specific control system. The control system includes a plurality of sensors and control electronics programmed to receive signals from the plurality of sensors; determine whether to initiate radiation delivery by the radiation delivery system based on a comparison of the signals received from the plurality of sensors to a first condition; and once radiation is initiated, determine whether to continue radiation delivery by the radiation delivery system based on a comparison of the signals received from the plurality of sensors to a second condition that is different than the first condition.

In combined methods for treating a patient using time-varying magnetic field, treatment methods combine various approaches for aesthetic treatment. A magnetic field generating device is placed proximate to a body region of the patient. The magnetic field generating device generates a time-varying magnetic field with a magnetic flux density in a range of 0.5 to 7 Tesla. The time-varying magnetic field is applied to the body region of the patient in order to cause a contraction of a muscle within the body region. A second therapy may be used by applying one or more of optical waves, radio frequency waves, mechanical waves, negative or positive pressure or heat to the body region of the patient.

A method of removing a tattoo from skin of a human subject. The method has the step of applying to a region of the skin having the tattoo a reducing composition that includes a reducing agent and a penetration enhancer in admixture. The penetration enhancer is present in an amount effective to effect penetration of at least at least a portion of the reducing agent through the skin to the location of the tattoo. The reducing agent is present in an amount effective to at least partially decolorize or break up a pigment of the tattoo. The reducing agent can be selected from the group consisting of sodium oxymethylene sulfoxylate and sodium hydroxymethane sulfinic acid.

Described herein are methods and apparatuses for the application of electric energy treatment(s) to skin tissue to alter pigmentation, and in particular to remove a tattoo. These methods and apparatuses may deliver pulsed electrical energy having a pulse duration in submicrosecond pulse range to provide high-field strength pulses that may effectively release tattoo ink and allow removal of tattoo ink regardless of ink color or composition.

A method for treating a skin lesion can include lowering a temperature of a treatment site to a temperature range sufficient to induce vasoconstriction in a dermis of the treatment site and administering a laser light through a medium to the skin lesion while maintaining the temperature of the treatment site within the temperature range. The medium can include a first portion and a second portion, where the laser light is transmitted through the first portion and the second portion sequentially, the second portion includes a contact surface for contacting the treatment site, and the second portion has a higher thermal conductivity than the first portion. The method can further include identifying the skin lesion and analyzing one or more characteristics of the skin lesion.

The present disclosure is directed to systems and methods that removing exogenous particles from a target region of the skin of a patient. The systems and methods can employ dermal lavage to remove the exogenous particles from the target region. In some instances, the exogenous particles can be residual tattoo ink after a tattoo removal process. A conduit can be sized and dimensioned for insertion into or around the target region to inject an irrigation fluid that defines an irrigation area. The exogenous particles can be suspended in the irrigation fluid. A device can be configured to form one or more channels in the irrigation area so that the exogenous particles are removable from the irrigation area.

Apparatus for treating skin tissue with a source of treatment light comprising a display and a source of treatment light along an optical axis. The apparatus further comprising an applicator which comprises; a hand help pathway for the source of treatment light, one or more sources of illumination light symmetrically surrounding the optical axis, and one or more sensors configured to obtain measured light along the optical axis. The apparatus further comprising a programmable control unit configured to; activate the illumination light, receive an output of the information sensed of measured light by the sensors, analyze the measured light received from the sensors, provide a list of skin attributes to the display based on analysis of the information sensed of measured light received, and provide a suggested treatment light regimen to the display.

A needling device may be used for needling of a subject's skin, and a drug applicator device may be used for applying a drug to a subject's skin. For example, a needling device may be applied to a subject's skin for hair growth applications, or may be used for wrinkle, scar, or tattoo removal. A drug applicator device may be used for multiple drug application purposes such as applying a hair growth compound to the skin of a subject.