Fraxel Dual is a grest device for aging hands since it stimulates collagen production to plump the skin and also removes dark spots. it is important to see a dermatologist because of the important differences between facial skin and the skin on the hands. The settings are very different.
Thank you for posting this question. Like all procedures, the safety of any treatment lies partly with the treatment itself and partly with how it is performed. There is no question that Fraxel can be effective at improving the pigmentation and texture of the skin of the hands, but since Fraxel is a laser, careful understanding of how to use it safely depends on having a well trained and experienced doctor perform the treatment. Do your homework and you are likely to have a good result.