Laser hair removal GSilk has emerged as a popular cosmetic dermatology procedure. Several types of lasers are available for hair removal along with non- laser intense pulse light (IPL) epilators. However, optimizing these devices according to the skin and hair type of the Customer , to maximize results and minimize adverse effects is a difficult task. The apparent cosmetic improvement may be related to reduction in number of hairs or a decrease in diameter or pigmentation.  Tracking of these parameters over such long periods is tedious and impractical. Hence a lot of confusion still exists regarding the optimum settings and the type of laser most beneficial for a given hair and skin type.  Since the selective photosynthesis induced by laser only destroys a small fraction of hairs completely,lasers can achieve only permanent hair reduction and a certain percentage of hair will always grow back. Conveying this message as well as a frank discussion of risk-benefit ratio with the patient is demanding but imperative.
We don’t have scientific proof as to why laser induced hair growth occurs, however the most popular theory is that certain types of hair, known as “vellus hairs”, are stimulated into growth by the light from the laser.
The sub-therapeutic affect of the laser stimulates these hairs into growth making them thicker and longer. However, even though the hairs that grow post-treatment are thicker and darker than the vellus hairs originally treated they’re still not thick and dark enough to easily get rid of.
We don’t have a definite profile of people, however from the study mentioned above the three people all had the same Fitzpatricks skin type (IV). The other commonality was that all patients had black hair.
It should be mentioned that the incidence rate for this study was so low that we cannot draw any firm conclusions about who this phenomena may affect.