This article covers what pico laser treatment is, how its ultra-short pulses work, what it may treat, and what results and side effects to expect. It also looks at cost and at how to evaluate a device or a provider.
Key Takeaways
- "Pico laser" is a category; PicoSure and PicoWay are brands.
- Wavelength, mode, settings, skin type, and provider skill all shape results.
- FDA-cleared uses vary by device, handpiece, and skin type.
- No device name guarantees results, downtime, session count, or price.
What Is Pico Laser Treatment?
A pico laser delivers energy in picosecond pulses. A picosecond is one trillionth of a second (10^-12 s), while a nanosecond, the pulse length of many traditional Q-switched lasers, is a billionth (10^-9 s). A dermatology review puts typical pico pulses at roughly 300 to 900 picoseconds.
Device, brand, and mode
Three terms get blurred together:
- Device category: any laser delivering picosecond pulses.
- Branded platform: PicoSure (Cynosure), PicoWay (Candela), or enlighten (Cutera).
- Treatment mode: pico toning (low-fluence 1064-nm treatment, often used for melasma), spot treatment, or fractional delivery that splits energy into microbeams.
What varies between platforms
Specifications differ more than the name suggests:
- PicoSure Pro: core wavelength 755 nm, brochure pulse range 500 to 900 ps
- PicoWay: 532, 730, 785, and 1064 nm, with FDA documentation listing 240 to 500 ps
- Also differ: spot size, handpieces, fractional optics, and cleared indications
Treatment is generally non-surgical, but that does not mean risk-free or right for everyone. A pico laser is a tool, not one standardized procedure. The plan should follow a diagnosis, your skin characteristics, your goal, and a qualified provider's assessment.
How Does Pico Laser Work?
The photoacoustic effect
Ultra-short pulses deliver energy so quickly that targeted pigment or ink absorbs it before heat spreads. A fractional pico review describes the result as predominantly photoacoustic: a rapid temperature rise generates shock waves that fragment particles.
The body then clears the smaller fragments over time. Nanosecond lasers act more photothermally.
Not heat-free
Pico is often marketed as gentler, but that claim is oversold. The same review describes thermal effects with fractional optics, including localized epidermal necrosis and heating of superficial vessels.
Hyperpigmentation, hypopigmentation, and transient post-inflammatory hyperpigmentation (PIH) all occur. A 2022 case report even documents a corneal burn during treatment of eyelid lesions, which is why eye protection matters.
Wavelength and mode set the target
- 532 nm: superficial pigment such as freckles and sun spots.
- 1064 nm: deeper pigment and dark tattoo ink; lower epidermal melanin absorption.
- 730/785 nm and 755 nm: pigment and blue or green ink, depending on the device.
- Fractional optics: acne scars, fine lines, and texture through microscopic cavities that start collagen remodeling.
Human biopsies after fractional pico treatment show dermal remodeling and intradermal cavities. That is mechanistic evidence, not an efficacy rate.
What Can Pico Laser Treat?
Pigment
Pico lasers are used for freckles, lentigines, sun-related spots, café-au-lait macules, nevus of Ota, and post-inflammatory hyperpigmentation. A diagnosis should come first.
The American Academy of Dermatology (AAD) warns that an apparent age spot may be skin cancer, and fading it cosmetically can delay diagnosis. Any raised, changing, or irregular spot needs a medical exam before laser treatment.
One 2022 study of 730-nm treatment for lentigines found clearance scores of 3 to 4 in 74% of treated areas at 12 weeks. Four of 20 patients developed PIH, which resolved within 3 to 4 weeks.
Tattoos
Ink color, depth, composition, and skin type all affect the plan, and each wavelength targets different colors. A 2026 randomized trial of black and blue tattoos found satisfactory clearance in 73.3% of pico-treated tattoos versus 23.3% with nanosecond treatment. Complete clearance was only 10%.
Improvement is not the same as removal, so beware of promises of full erasure or fixed session counts.
Texture, scars, and wrinkles
With fractional or collagen-stimulating modes, pico may improve acne scars, pores, and fine lines. This works through gradual remodeling rather than instant pigment clearance. In one 2015 trial, mean scar-volume improvement was 24.0% at one month and 27.2% at three months.
Darker skin tones
Shorter pulses can limit excess thermal injury, but risk remains. In a 2020 tattoo study of Asian patients with Fitzpatrick types III to IV, PIH appeared in 24.3% of tattoos at 532 nm and 21.6% at 1064 nm. Hypopigmentation occurred in 9 of 37 tattoos at 532 nm. The 1064-nm wavelength is generally the safer baseline, and settings and test spots matter.
Limits and alternatives
- Melasma responds variably. One trial found no significant difference between pico and nanosecond lasers, with 12.5% recurrence on both sides.
- Hair removal is not a standard pico laser indication.
- Not every scar type or pigment concern suits pico.
What to Expect from Pico Laser Treatment
Consultation
Expect questions about medical history, medications, recent tanning, skin type, prior procedures, and your goal. For tattoos, the AAD notes that healthy immune function matters and that pregnancy or breastfeeding rules out treatment. A good provider may suggest a test spot or a different treatment.
The appointment
You'll wear eye protection, and skin is cleansed and often photographed. Some providers use topical numbing or cooling. Fractional pico typically needs mild numbing or none. Appointment length depends on the area, mode, and goal.
Aftercare and recovery
- Redness, swelling, and sensitivity are common. Fractional treatment typically brings 6 to 24 hours of mild redness in vendor materials, and one 2024 summary reports 2 to 3 days of erythema, swelling, or purpura after fractional scar treatment.
- Tattoo treatment may bring blistering. The AAD advises clinician-directed wound care and sun protection for 3 months.
- Use moisturizer and SPF 50+ sunscreen, and don't pick at treated skin. Follow your provider's guidance on heat and exercise.
Results and sessions
Changes in brightness may appear soon after one treatment. Scar and texture gains build gradually. In the 2026 tattoo trial, patients had 5 sessions three months apart. Another study used up to 8 sessions at 4-week intervals. No universal timeline exists.
Side effects and warning signs
Temporary irritation and pigment changes are most common. Burns, blistering, infection, and scarring are less common but possible. The American Society for Dermatologic Surgery (ASDS) advises contacting your physician right away for suspected problems or considerable redness or soreness.
How Much Does Pico Laser Cost and How Do You Choose a Device or Provider?
What influences pico laser treatment cost?
No credible current national per-session benchmark exists. Pricing guides on RealSelf date to 2023 and shouldn't be treated as a standard. Quotes shift with:
- Treatment area (a small spot versus the whole face)
- Tattoo size and number of colors
- Concern being treated
- Device and number of sessions
- Provider experience and local market
- Consultation fees and prepaid packages
Ask for an itemized quote that includes consultation, each session, and any touch-ups.
How should a clinic or buyer evaluate a pico laser device?
The word "pico" tells you little. Verify the following:
- The exact manufacturer and model.
- Available wavelengths and handpieces.
- Intended indications, matched to the exact model and Fitzpatrick type.
- FDA 510(k) clearance, searchable by device name or number in the FDA database.
- Service, maintenance, training, and documentation.
Cleared indications differ sharply. PicoWay's Resolve 1064-nm handpiece is cleared for acne scars in Fitzpatrick types II to V, while enlighten III's acne-scar clearance uses 1064 nm with a micro lens array. FDA registration alone does not mean clearance.
Pico Laser Buyer's Guide is an independent resource for clinical professionals, practice owners, and technical evaluators. It compares manufacturer-backed specifications and source documentation across 16 pico laser platforms. It supports equipment research and does not provide patient treatment.
How should a patient evaluate a provider?
- Confirm credentials. The AAD recommends a board-certified dermatologist for tattoo removal, and the American Board of Dermatology offers a lookup.
- Ask about experience with your concern and skin tone.
- Expect a real consultation and informed consent.
- Ask which device is used and request before-and-after photos.
- Look for realistic counseling and open talk about alternatives and risks.
Frequently Asked Questions
How much does pico laser cost?
There is no single national price. Area, concern, device, provider, session count, and local market all affect the total. Request an itemized quote.
What does pico laser do for skin?
It can target selected pigment and tattoo ink. With fractional modes, it may also improve acne scars, pores, wrinkles, and texture. Results depend on diagnosis and settings.
How long does it take for pico laser to show results?
Some brightening may appear after one session, while pigment clearance and collagen remodeling build over weeks to months. Timing varies by condition, mode, skin response, and plan.
Are there any side effects of pico laser?
Temporary redness, swelling, sensitivity, dryness, darkening, or pigment changes are common. Burns, blistering, infection, or scarring are less common but possible. Discuss your individual risk with a qualified provider.
Does pico laser treatment really work?
For selected pigment, tattoo, and texture concerns, often yes. A 2021 systematic review of 77 studies graded evidence strongest for tattoos and weaker for melasma and scars. Outcomes are never guaranteed.
Can PicoWay laser treatment be used to treat acne scars?
Certain configurations can. FDA clearance K220853 covers the Resolve 1064-nm handpiece for Fitzpatrick types II to V. Suitability still depends on scar type, handpiece, settings, and provider assessment.
