The TEPR technique is a modern take on an old tattoo removal technique, which uses the theory of partial thickness wound healing in modified form. It relies upon closely spaced partial thickness injuries on a small surface area, with intervening skin bridges of intact epidermis and dermis. Closely packed needles are used, similar to those in traditional tattoo devices.

TEPR uses medical-grade micro needles, which are set to precise user-defined penetration depths. These de-epithelialized patches expose the underlying dermis, into which the special Magic Pen® fluid is introduced. The needles facilitate the penetration to a defined depth of the dermis. A partial thickness injury is therefore created in the skin (at a depth which should include all the tattoo pigmented dermis) and dries over the course of a day. Partial thickness wound healing then proceeds around and under the skin where the treatment has been performed, which drops off the skin after approximately two weeks. The tattoo pigment that was located within this part of the skin is thus released.

Once the TEPR wounds are mature (healed, pale and flat) a new treatment session may take place in an adjacent area of tattoo pigmented skin, using the same technique. In this manner, the whole area of the tattoo may be progressively and sequentially covered and removed, in three or four sessions.

The TEPR technique has to be applied on a clean and shaven area, prepared with alcohol cleanser. No anesthesia are required in 80% of the cases. The needle used is adjustable, limits the scar and are deep enough to reach the tattoo pigment. Consequently, in 3 or 4 sessions, the whole area of the tattoo is treated. The patient has to precisely follow aftercare advise given by the treating physician.