PicoSure Pro vs PicoWay for Melasma on Asian Skin — Which Picosecond Laser Is Better?

Medically reviewed by Dr. Dan Xu, M.D., CCFP — CPSO Licensed Physician and Founder & Medical Director of ID Cosmetic Clinic, Markham. Last updated June 2026.

“Which picosecond laser is best for my melasma — PicoSure Pro or PicoWay?” is one of the most common questions we hear from patients across the Greater Toronto Area, and it is the right instinct to compare technology before committing. But it is also the wrong place to put most of your attention. Melasma is a stubborn, relapse-prone pigment condition that is especially tricky on Asian skin, and the single biggest predictor of a safe, lasting result is how the laser is used, not which logo is on the machine. This guide breaks down exactly how each device works, where they differ, who each one suits, what treatment feels like, how long results last, and what it costs in Toronto — so you can walk into a consultation knowing the questions that actually matter.

This is general information, not medical advice. Melasma should be diagnosed and treated by a qualified physician who can assess your skin in person.

PicoSure Pro vs PicoWay for melasma — at a glance

Specifications are summarised from each manufacturer’s published parameters and the clinical literature, for general comparison. Pricing varies by treatment area and plan — book a consultation for an exact quote. (Cost figures to be confirmed by the clinic before publishing.)

Which one is right for you?

• Choose PicoSure Pro if your melasma is mainly epidermal or mixed-type, your skin is Fitzpatrick III–IV, and you want a device whose honeycomb Focus Lens Array concentrates energy into tiny zones for pigment clearance with minimal heat and essentially minimal downtime.
• Choose PicoWay if your skin is deeper (Fitzpatrick IV–V), your pigment sits lower in the dermis, or you have not tolerated 755 nm well — the 1064 nm wavelength is absorbed least by epidermal melanin and is the safest option for richly-pigmented skin.
• Either device is reasonable if you have classic mixed Asian melasma — what matters most is that your physician uses conservative, low-energy settings and a 4–6 week treatment rhythm. We use PicoSure Pro as our day-to-day platform for Asian skin precisely because the Focus Lens Array keeps heat low.
• Neither laser alone is the answer if you are not prepared to commit to daily sun protection and a topical regimen — melasma relapses without that foundation, whichever device you choose (see “Can you combine them?” below).

Why picosecond lasers are safer than older lasers for melasma

Before comparing the two machines, it helps to understand why any picosecond laser is generally a safer starting point for melasma than older nanosecond (Q-switched) lasers — because that difference matters more for melasma than the brand debate.

The key variable is pulse duration — how long each burst of light lasts:

• Nanosecond lasers deliver energy over roughly 5–20 nanoseconds. They shatter pigment largely through a thermal (heat) effect, which also warms the surrounding tissue.
• Picosecond lasers (PicoSure Pro and PicoWay) deliver energy in 300–750 picoseconds — 10 to 100 times faster. The pulse is over before heat can spread, so pigment is broken up mainly by a photomechanical shockwave rather than by heat.

For melasma this is critical. Melasma is driven by overactive pigment cells (melanocytes) that are extremely sensitive to heat. The thermal effect of older lasers can provoke a defensive, rebound reaction in those cells — sometimes worsening pigment and causing post-inflammatory hyperpigmentation (PIH). This is exactly why Asian patients have historically been at higher risk with traditional lasers. Picosecond technology lowers the heat load and, in theory, is less likely to trigger that rebound. Important caveat: “safer” is relative. At the wrong settings, a picosecond laser can still aggravate melasma.

PicoSure Pro: the honeycomb lens advantage

PicoSure Pro (Cynosure) is our day-to-day platform for treating melasma and pigment on Asian skin at ID Cosmetic Clinic. Its defining technology is the Focus Lens Array (FLA) — a “honeycomb” lens.

• How it works: the primary 755 nm wavelength sits in the near-infrared band and is absorbed strongly by melanin (and far less by water and blood), giving it good targeting of pigment in the epidermis and superficial dermis — well matched to the mixed-type melasma common in Asian skin. The Focus Lens Array then splits a single pulse into hundreds of micro-beams that create concentrated focal zones (peak energy roughly 20× the average) while keeping the energy on the surrounding tissue very low.
• Best for: epidermal and mixed-type melasma and overall skin brightening. The low average fluence reduces heat stimulation of melanocytes, while the high focal peak still fragments pigment — lowering PIH risk and keeping recovery fast.
• What it feels like: at the low energies used for melasma, most patients describe a mild rubber-band-snap sensation. Topical numbing is usually unnecessary but can be offered.
• Downtime & results: generally none — mild redness that settles within hours, occasionally tiny pinpoint micro-crusts that flake off within 1–3 days. We target the treatment endpoint of light erythema (redness) only — never immediate whitening or crusting, which signal that energy is too high.

PicoWay: multi-wavelength flexibility

PicoWay (Candela) competes on wavelength choice and an even shorter pulse. It ships with three wavelengths, letting the physician match the beam to pigment depth and skin tone.

• 532 nm: absorbed best by superficial red-brown pigment (such as freckles), but it is the most stimulating to dark skin — used cautiously, if at all, on Asian skin for melasma.
• 730 nm: similar in spirit to PicoSure Pro’s 755 nm — good melanin absorption with relatively low thermal injury to deeper skin.
• 1064 nm: absorbed least by epidermal melanin, so it passes more safely through dark skin to reach deeper dermal pigment — the safest wavelength for Fitzpatrick IV–V patients and a useful tool for dermal-type melasma.

PicoWay’s pulse can reach 300–450 ps, and some modes approach sub-picosecond. A shorter pulse means a stronger photomechanical effect and an even smaller proportion of heat — physically efficient for fragmenting pigment with minimal collateral warming.

• Best for: deeper skin types, visible dermal pigment, or patients who have not tolerated 755 nm well, where the 1064 nm wavelength offers a theoretical safety edge.
• What it feels like & downtime: at melasma settings, comfort and recovery are comparable to PicoSure Pro — a mild snap, brief redness, usually no meaningful downtime.

Asian skin and melasma: why the settings decide the outcome

Asian skin (Fitzpatrick III–V) has more reactive melanocytes, greater sensitivity to heat and light, and a higher tendency to develop PIH. For melasma specifically, low energy and multiple sessions is the near-universal consensus among physicians who treat pigmented skin. The core principles we follow:

• Fluence (energy density): err low. Melasma is typically treated at only 30–50% of the energy used for clearing dense pigment like nevus of Ota. High energy can look impressive briefly, then trigger a melanocyte rebound that brings the melasma back — sometimes worse — within weeks.
• Treatment endpoint: light, immediate erythema (redness) with no immediate whitening. Whitening means the epidermis is over-treated and is a high-risk signal for PIH.
• Interval: 4–6 weeks, to let skin recover and to read how the pigment is responding. Treating too often accumulates heat and can worsen melasma.
• Expectations: usually 4–6 sessions (sometimes more) before stable improvement appears. The plan should not be judged a failure — or pushed to higher energy — after only one or two sessions.

Why physician experience beats the brand: PicoSure Pro at the wrong settings can worsen melasma; PicoWay at the right settings can safely improve it — and vice versa. Both machines are physically capable of treating Asian melasma safely. What separates a good outcome from a bad one is whether the operator understands that melasma is a melanocyte-regulation problem (not just “spots”), can tailor wavelength and fluence to your melasma depth (epidermal / dermal / mixed), reads your skin’s reaction in real time, and — crucially — knows when to stop.

Can you combine them — and what else does melasma need?

Honest answer: a picosecond laser is one of the most effective laser options for melasma, but melasma cannot be “cured” by a laser alone. It is a chronic, relapse-prone condition rooted in how your melanocytes over-react to UV light, hormones (estrogen/progesterone) and heat. A laser fragments the pigment that is already there; it does not change that underlying hypersensitivity. That is why we treat melasma as a program, not a procedure:

• Strict daily sun protection — broad-spectrum SPF 50+, mineral/physical filters preferred, reapplied through the day. This is non-negotiable; without it, any laser result is temporary.
• Topical brighteners — such as vitamin C, azelaic acid, arbutin, or prescription hydroquinone where appropriate, to suppress new melanin formation alongside the laser.
• Oral tranexamic acid where medically suitable — supported by research for systemic melasma management, prescribed and monitored by a physician.
• Trigger control — minimising heat exposure, reviewing hormonal medications, and reducing facial friction.
• Gentler maintenance devices — low-heat laser toning or light-based “toning” can be layered in for maintenance or for patients who do not tolerate pico well, complementing rather than replacing pico.

For patients who commit to this combined approach, results from picosecond treatment can hold for a long time. For patients who do not control their triggers, no laser result will last.

Who is not a good candidate?

Picosecond lasers are safe and well-studied, but they are not for everyone, and melasma in particular demands caution. You may need to wait or choose a different approach if you:

• are pregnant or breastfeeding (melasma is often hormonally driven and frequently fades on its own afterward — we usually defer active laser treatment);
• have an active skin infection, open wound, or active acne breakout in the treatment area;
• have recently had significant unprotected sun exposure or a fresh tan;
• are taking photosensitising medication (such as certain antibiotics or isotretinoin within a recent window);
• have a history of keloid scarring or a tendency to PIH that has not been pre-treated and stabilised;
• have a melanocytic lesion that has not yet been properly evaluated — any changing or atypical pigmented spot should be assessed before laser, never treated blindly.

This is general information, not medical advice — a qualified physician should confirm your suitability and diagnose your specific type of melasma in person.

What results should you realistically expect?

Neither laser will erase melasma in a single session, and neither will make your melanocytes “normal.” What a well-run picosecond course does is fragment deposited pigment so your skin can clear it, gradually evening out tone over a series of low-energy sessions. Some patients notice slight lightening within 1–2 weeks of the first treatment, but stable, visible improvement usually emerges after 3–4 sessions spaced 4–6 weeks apart. Patients who pair treatment with disciplined sun protection and topical care keep their results the longest. Honest expectations — and a willingness to manage melasma long-term — are the strongest predictors of satisfaction, which is why we would rather under-promise than oversell a “miracle” course.

How much does it cost in Toronto?

Cost depends on the device, the area treated, the energy and pattern your plan requires, and the number of sessions. As a general guide:

(Exact ID Cosmetic Clinic pricing to be inserted before publishing.) Be cautious of melasma “deals” priced far below market — for pigment, an unusually cheap, high-energy, rapid-fire course is the very thing most likely to worsen your melasma. With melasma, conservative is correct.

Why choose ID Cosmetic Clinic for melasma?

A picosecond laser is only as good as the physician planning and delivering it — and melasma is one of the conditions where that is truest. At ID Cosmetic Clinic in Markham, every melasma plan is led by Dr. Dan Xu, M.D., CCFP — a CPSO Licensed Physician, Clinical Preceptor at the McMaster University Medical Program, and Founder & Medical Director of the clinic since 2017, with 8+ years and 5,000 clients · 80,000 treatment areas of experience. Our practice primarily serves Asian faces, and we choose and tune our lasers accordingly — using PicoSure Pro day-to-day for its low-heat Focus Lens Array, with conservative, individualised settings designed to minimise the PIH risk that makes melasma so unforgiving on richly-pigmented skin.

Related at ID Cosmetic Clinic

• Treatment: PicoSure Pro · Pico laser
• Concern: Melasma · Hyperpigmentation
• Compare & learn: Pico laser vs Fotona ClearGlow for melasma · Oral tranexamic acid for melasma