How the Fraxel Dual Laser works
The Fraxel Dual laser is a fractional resurfacing device that uses two distinct wavelengths to address skin concerns at different depths simultaneously.
The 1550nm erbium fiber wavelength penetrates into the deeper dermal layers, creating columns of controlled thermal injury that trigger the body’s wound-healing response. As the tissue repairs, it generates new collagen and elastin fibers, resulting in firmer, smoother skin with improved structural integrity. This wavelength is the primary driver of Fraxel’s ability to reduce fine lines, soften wrinkles, and improve acne scarring.
The 1927nm thulium wavelength targets the more superficial epidermal layer, where it is highly absorbed by water in the tissue. This wavelength is very effective at addressing surface-level pigmentation issues including sun spots, age spots, melasma, and overall skin discoloration. By treating both the deep dermal structures and the superficial pigmented layer in a single session, the Fraxel Dual delivers more full results than single-wavelength devices. The fractional approach means that only a fraction of the skin surface is treated during each pass, leaving surrounding healthy tissue intact to facilitate rapid healing and minimize recovery time.










