Do lasers work for unwanted hair growth? Part 2

No randomized study has ever shown that lasers permanently block hair growth.

Moreover, the investigators found that there was little or no evidence that intense pulsed light, neodymium: YAG or ruby lasers did much for hair removal. With these lasers the effects were mild and the hair free period was less than 3 months. Long-term hair removal was not documented with any treatment.

The consumer should also know that lasers do have side effects and in every study examined there were a few individuals who had pain, skin redness, swelling, burned hairs and skin pigmentary changes.