Thank you for your question. The Halo laser is quite unique, as it actually combines two different laser wavelengths at the same time - it's like having a light ablative laser treatment (that actually exfoliates and removes the most superficial layers of the skin) and a non-ablative laser (that heats up deeper the deeper layers of the skin to promote new collagen growth) at the same time. In my opinion, it offers the best balance between low downtime and visible results of any laser device available. Fraxel, on the other hand, only offers non-ablative treatment - in my experience, treatments are more painful and the results are less dramatic. Keep in mind that with either Halo or Fraxel, you may need multiple treatments for best results. Best of luck!