Laser genesis and Fraxel are two different kinds of lasers. They fall into the category of ablative lasers and Non-Ablative lasers. In Greek, to ablate means to destroy (or burn). Non-ablative does not burn. Thus, ablative lasers burn the superficial layer of the skin, or micro-zones of superficial and
deep layers, and cause the skin to repair itself. Non-ablative lasers put heat into a layer of the skin, and trick the skin to repair collagen (or constrict capillaries that cause redness), without burning.
Fraxel is a "semi-ablative" resurfacing laser. There are two kinds. Fraxel
Restore is the lightest resurfacing. Patients have 3-4 days of peeling,
then fresher resurfaced skin. It is usually repeated several times. Fraxel Repair is a deeper single-treatment resurfacing, and has a down time of 7+ days of peeling depending on the aggressiveness of the setting.
Laser genesis is a Non-Ablative treatment, and doesn't burn the skin. It has no down time. It
causes collagen contraction and repair in the superficial layer of the skin, so
it tightens pores, and diminishes redness (from capillary blush). It is very
effective for Rosacea, or other conditions with enlarged pores and redness in
the T-zone of the face.