Fractional Laser vs Pico
A fractional laser is the stronger choice for texture, acne scars and wrinkles. It makes thousands of microscopic columns of controlled injury, and the skin rebuilds itself over the following weeks. A pico laser is the better choice for tattoos and pigment. It fires pulses so short that they shatter ink and pigment without heating much around them, so most people look normal again within a day. When the two have been compared for acne scars, the fractional laser did more, and it also asked more of the person having it.
What it does to the skin
It treats a fraction of the surface and leaves the skin in between untouched. That untouched skin is what heals the rest. New collagen fills in over weeks.
The pulse is measured in trillionths of a second. It breaks pigment into dust more by shock than by heat. Your body then clears the pieces away.
What it is best for
Acne scars, rough or crepey texture, fine lines, sun damage and surgical scars.
Tattoo removal, sun spots, freckles, and some cases of melasma. Also used for mild texture.
What it will not do
It also does not lift loose skin.
A pico laser can soften a shallow scar. It does not do much for a deep, boxcar acne scar on its own.
What it feels like
Like a hot rubber band snapped over and over. Numbing cream is standard, and stronger settings may need more than that. Afterwards it feels sunburnt.
Sharper but much faster, and over in minutes for a small area. Numbing cream is often enough.
Downtime
A gentler non-ablative treatment means a few days of pink, swelling and flaking. A stronger ablative one means about a week of raw, oozing, peeling skin, then weeks of redness fading.
Redness and swelling for a few hours to a day. Treated spots may darken and flake off over the next week.
How many sessions
A single strong ablative treatment can do the job. Gentler devices are a course, spaced four to six weeks apart.
Pigment often takes three to six visits. A tattoo can take far more, spaced six to eight weeks apart.
How long it lasts
New collagen is real change. Ageing carries on around it.
Removed tattoo ink does not come back. Sun spots and melasma can return with sun exposure.
Main risk to know
Post-inflammatory hyperpigmentation is the common problem, and it is more likely on deeper skin tones. Infection and scarring are uncommon but real, and more likely with the ablative settings.
Blistering, temporary dark marks, and loss of colour in the treated spot. Tattoo ink can also turn a different colour instead of fading.
Cost
An ablative course may be one expensive appointment. Ask what a full plan costs, not one visit.
Each visit costs less than strong resurfacing, but you will need several. The total is what matters.
The at-home or drugstore version
At-home fractional devices exist and use the same principle at a fraction of the power. They reach the very top of the skin only. A retinoid cream is the honest at-home comparison for texture and fine lines, and it is slower but works.
Home tattoo removal creams and wands do not shatter pigment. Nothing sold for home use puts out a picosecond pulse.
Who each suits
Why these two get mixed up
Many pico devices can also be run in a fractional mode: A lens splits the beam into a grid of high-energy points, which lets a pigment laser do a little resurfacing too.
That does not make it the same treatment: A fractional pico works by shock inside the skin. A fractional resurfacing laser works by heat, and heat is what drives the collagen response. So a fractional pico is a gentler middle option, not a swap for the stronger machine.
Ask which mode your clinic means: "Pico" on a price list can mean pigment settings or fractional settings.
Which one for acne scars
A fractional resurfacing laser has the better record for atrophic acne scars: Those are the sunken, pitted ones, and they need the skin rebuilt from below.
A pico laser has a weaker record for the same scars: It can help mild texture and it clears the brown marks scars leave behind, which often makes the skin look better. The dents themselves change less.
Many people end up having both: Pigment first, resurfacing later. That is a normal plan, not an upsell.
If your skin tone is deeper
Dark marks after treatment are the main concern on medium and deep skin tones: They usually fade, but fading can take months.
Lower settings and longer gaps between visits reduce the risk: So does strict sun protection before and after. Ask how often the clinic treats your skin tone with that device.
Before you book
Ask which device and which setting, and why that one for your problem.
Ask for before-and-after photos of someone with your skin tone and your concern.
Ask what the whole course costs, not the price of a single session.
Book resurfacing when you have the time off. A week of peeling is hard to hide at work.
Mention active acne or a history of cold sores. Both change the plan.
