Laser hair removal in a patient with hypertrichosis lanuginosa congenita.

background Hypertrichosis lanuginosa congenita (HLC) is a cutaneous disorder marked by diffuse lanugo-like hair present at birth. Although affected individuals are usually healthy, the excessive hair creates an extraordinary appearance. Permanent eradication of their superfluous hair is therefore a priority. However, a procedure that would achieve this objective is not currently available. objective To evaluate the efficacy of a new laser technique for hair reduction in a patient with HLC. methods Selected sites were repeatedly treated with a neodymium: YAG (Nd: YAG) laser subsequent to application of a topical carbon-based solution. results Forty to eighty percent hair reduction was noted in the sites treated. conclusion Topical solution-assisted Q-switched Nd: YAG laser hair removal is a safe and effective method for reducing hair density in cases of extensive hypertrichosis. It is an attractive method for children because the low fluencs used minimize the associated pain.