Ablative Versus Fractional Lasers for Skin

Ablative and fractional are often said in one breath, yet they describe different things. This page sets two sources side by side and checks what each one states. Readers who meant a different treatment will find the American Society of Plastic Surgeons page on laser hair removal instead.

What each source says about fractional

WebMD says fractional lasers target only a fraction of the skin at a time. WebMD notes that fractional lasers can be ablative or non-ablative.

That second sentence matters most. The two words are not opposites, so a menu line that says "fractional" has not told you whether skin is being removed.

A paper in PMC on nonfacial skin rejuvenation of the neck, chest and hands using laser techniques covers laser techniques in more depth for readers who want the clinical literature.

Reading the fractional claims line by line

WebMD says the laser energy is broken into thousands of tiny beams, which reduces downtime. It lists age-related blemishes, hyperpigmentation, acne scars and wrinkles as conditions this option can treat. In that line, WebMD gives no length for the reduced downtime.

Cleveland Clinic says fractional CO2 laser resurfacing delivers many narrow columns of laser light, so much of the skin is not injured. It says the skin tightens as the collagen between the treated laser holes contracts.

Cleveland Clinic also names the tradeoff. Because the laser light penetrates more deeply than other lasers, it says there is a greater risk of complicated healing and scarring. It puts recovery time with fractional laser resurfacing at one full week.

The two sources agree that less skin is injured. They differ in emphasis. WebMD leads with reduced downtime, and Cleveland Clinic pairs less injury with deeper reach and a higher scarring risk.

The American Society of Plastic Surgeons describes the broader procedure on its laser skin resurfacing page, which is useful for checking terms against a third source.

The question to ask before choosing

Ask whether the laser being offered is fractional, ablative or both, and what recovery and scarring risk apply to that exact device. Then compare the answer with the full Cleveland Clinic page on laser skin resurfacing. A clear answer from the clinic should match what these sources describe.