Non-Ablative Fractional Laser (Fraxel-type)

How it works

A 1550 nm (and in some versions 1927 nm) fractional laser creates tiny columns of heat injury in the deeper skin while leaving the surface mostly intact. The body replaces the damaged tissue and remodels collagen, which may smooth texture and soften shallow scars over weeks to months. Because less tissue is removed, recovery is shorter than ablative lasers, but results are gradual and usually need several sessions. Outcomes vary by person and skin type.

Who it may suit

• Mild to moderate acne scars and texture changes
• Fine lines and early sun damage
• Skin that needs improvement but cannot tolerate a week of crusting
• Travelers who can plan a series across several weeks

The treatment day

1. Consultation. The doctor reviews skin type, scar pattern, medicines and past reactions, and decides if a series is realistic.
2. Numbing. A numbing cream sits on the skin for a short period ahead of the laser.
3. Laser treatment. The laser is passed across the area in a pattern, with a hot, prickling feel and cooling air. A session takes about 20 to 40 minutes plus numbing.
4. Cooling and soothing. The skin is cooled and moisturizer and sunscreen are applied, with instructions for the following days.

Aftercare

• Expect redness, swelling and a bronzed look with rough texture for about 2 to 4 days
• Moisturize frequently and avoid picking at flaking skin
• Use sunscreen and shade; treated skin is sensitive to ultraviolet light
• Postpone strong acids, retinoids and scrubs until the doctor allows them
• Sleep with your head slightly raised if swelling bothers you

Things to know first

• Possible effects include redness, swelling, dryness, acne-like bumps, herpes flare-ups, pigment change and, rarely, blistering or scarring
• Results are gradual, vary by person, and rarely erase deep scars
• Pregnancy, active infection, isotretinoin use, recent tanning and keloid tendency may limit treatment
• Darker skin tones need cautious settings to limit pigment change
• Sessions are typically about four weeks apart, so one trip usually covers one

Planning non-ablative fractional laser around a Seoul trip

Swelling is most noticeable around the eyes in the first day or two, and the bronzed, grainy skin takes several days to peel away. Treat early in your stay so it has cleared by the time you fly, and keep the most photographed days later in the trip. Dry cabin air is a poor match for freshly treated skin, so carry a thick moisturizer.

The four-week spacing is the main limit. If you are in Seoul for under a month, you will likely have one treatment, which is a reasonable way to see how your skin responds. Ask the doctor what to expect from a single session and what follow-up options exist back home. Write down the wavelength, energy and density used, since another provider will want to match them.