Hi EmmaLothlorien, thanks for your question. This is great news. MENDs are “microscopic epithelial necrotic debris.” They appear as a predictable part of healing from a laser resurfacing treatment such as Halo. The Halo laser creates intentional, microscopic columns of injury in the skin. In the days following treatment, these microscopic columns are shed from the skin as MENDs. In this phase of healing, the skin typically takes on a dry, “sandpaper-like” quality before revealing the new, smoother skin below. While not all patients develop significant MENDs, this is often an indication of a good response to the treatment. Continue to follow your post-care instructions and look forward to following up with your doctor to review your results.