What is the mechanism of action for fractional lasers?

Fractional lasers work by creating microscopic wounds in the skin while leaving surrounding tissue intact. This precise method targets only fractions of the skin, which promotes a more efficient healing process. The controlled injury stimulates the body’s natural healing response, leading to increased collagen production and skin rejuvenation.

In the healing process, the healthy surrounding tissues help facilitate recovery, which reduces downtime and minimizes complications compared to more aggressive ablative techniques. This stimulation of collagen is vital for improving the texture, tone, and overall appearance of the skin. The mechanism allows for various applications, including treatment of acne scars, wrinkles, and sun damage, making fractional lasers a versatile tool in dermatology and aesthetic practices.

While other options touch on different laser functionalities—such as hair removal or addressing increased blood flow—they do not accurately describe the specific mechanism of action for fractional lasers, which focuses on skin rejuvenation through the controlled induction of micro-injuries.