Laser vaporizes skin cells damaged at the surface-level.This method has been used for years to treat different skin issues, including wrinkles, scars, warts, enlarged oil glands on the nose, and other conditions. The newest version of CO2 laser resurfacing (fractionated CO2) uses very short pulsed light energy (known as ultrapulse) or continuous light beams that are delivered in a scanning pattern to remove thin layers of skin with minimal heat damage. Recovery takes up to two weeks.
How does fractional laser treatment work?
To understand how fractional laser treatment works a basic understanding of skin structure is required. Briefly, skin consists of 3 layers, the epidermis (uppermost layer), dermis (mid-layer) and subcutis (lower fat layer). The epidermis contains pigment-producing cells called melanocytes, which are responsible for skin colouring. The dermis is made up of collagen and elastin fibres that provide skin with strength, toughness, elasticity and pliability (click here for detailed information on skin structure).
As the body ages, the appearance and characteristics of the skin alter. The epidermis becomes thinner, so blemishes become more visible, and collagen in the dermis is gradually lost which contributes to the formation of facial lines, sagging skin and wrinkles.
Fractional laser treatment works by targeting both the epidermis and dermis. It does this by delivering a laser beam that is divided into thousands of tiny but deep columns of treatment into the skin. These are called microthermal treatment zones (MTZs). Within each MTZ old epidermal pigmented cells are expelled, and the penetration of collagen in the dermis causes a reaction that leads to collagen remodelling and new collagen formation. By using MTZs, the laser targets and treats intensively within the zone while surrounding healthy tissue remain intact and unaffected and helps heal the wound. This fractional treatment results in a faster healing process than if all tissue in the treatment area was exposed to the laser.
Fractional laser treatment is used for the treatment of:
Facial lines and wrinkles (rhytides)
Skin pigmentation associated with photoageing
Surgical and acne scarring.