It was a series of 3 times which will cost less than individual treatment. I was advised to use a series of 3 to obtain the maximum result.
First time seems OK. Second time no improvement nor no worse. After 3rd time, the result was 5 times darker than the color on the neck and left a sunglass covermark on the face.
THe procedure was extremely painful. I would rather look old but no going through this treatment. Overall, it was costly and the result was disappointing.