Choosing Laser and Light Technology for Melasma

Choose the wavelength before you choose the marketing claim

A device brochure can say pigment, melasma, all skin types, or picosecond.

None of those words answers the most important first question:

What wavelength is actually entering the skin?

Melasma is not ordinary sun damage. It is a chronic, recurrence-prone pigmentary condition that commonly presents in pigment-prone skin. That means the optical relationship between the wavelength and epidermal melanin matters from the beginning.

Picosecond does not make every wavelength equivalent

The word picosecond describes pulse duration. It does not erase wavelength physics.

755 nm has stronger melanin interaction than 1064 nm. By comparison, 1064 nm has lower relative absorption by epidermal melanin and penetrates more deeply.

For a patient population with more baseline epidermal melanin, that is not a trivial specification difference. It affects how much competing pigment is present in the beam path before energy reaches the intended target.

A 2023 systematic review and meta-analysis of randomized melasma trials reflects that distinction. The 1064 nm picosecond subgroup significantly reduced MASI/mMASI, while the 755 nm subgroup did not significantly outperform topical depigmenting agents and reported post-inflammatory hyperpigmentation. View the PubMed record.

A randomized assessor-blinded trial in Fitzpatrick III–IV patients also found greater MASI reduction with 1064 nm picosecond Nd:YAG than with 755 nm picosecond alexandrite or 2% hydroquinone. View the published trial.

So when evaluating a laser for melasma:

Do not stop at “pico.” Ask which wavelength.

Melasma is not the same treatment category as sun spots

This matters especially in clinics that own or are considering filtered-light technology.

DPL Elite can be an excellent platform for broad-field treatment categories such as sun damage, uneven pigment, redness, vascular concerns, acne, and photorejuvenation.

But a platform being strong for photodamage does not mean every brown facial patch should be treated the same way.

Melasma deserves its own treatment decision.

That is why Laser Equipment Global should present the portfolio by indication rather than pretending one energy source is automatically ideal for every type of pigment.

For conventional sun damage, broad-field filtered light may be exactly what the clinic wants.

For melasma-focused treatment planning — especially when epidermal melanin sparing is important — 1064 nm becomes the more logical starting point.

The next question: what can the platform do after melasma?

Once the wavelength makes sense, the buying decision becomes commercial.

A clinic should ask:

What fills the schedule between melasma treatments?

This is where the Pro 1 Pico treatment architecture becomes important.

Its 1064 nm foundation supports more than one treatment behavior:

• 500 ps picosecond pigment treatment
• PTP dual-pulse delivery
• Long-pulse 1064 nm vascular and thermal treatment pathways
• PulseStack™ 750 recurring skin-quality treatments
• PicoMatrix™ precision remodeling technology

And the treatment menu extends beyond melasma into pigmentation, tattoo removal, PMU correction, vascular and redness treatments, spider veins, acne scars, pores, texture, hair restoration, selected hair reduction, carbon peel, and broader rejuvenation.

That is the difference between checking a box that says “melasma” and buying a platform that can actually stay busy.

A better buying framework

When evaluating technology for melasma, ask these questions in order:

1. What wavelength is the primary treatment wavelength?
2. How strongly does it interact with epidermal melanin?
3. What pulse behaviors are available at that wavelength?
4. Can the provider adapt the treatment strategy instead of relying on one fixed mode?
5. What other treatment categories keep the platform productive throughout the week?

That framework is more useful than a broad promise that a device is simply “safe for all skin types.”

A strong platform should explain the physics, not ask the buyer to ignore them.

Continue reading

• Melasma Treatment: Why Wavelength and Treatment Strategy Matter
• Melasma in Darker Skin: Why 1064 nm Matters
• Pro 1 Pico for Melasma
• Why IPL Can Worsen Melasma

Treatment selection and parameters remain provider-directed. Results vary, and melasma may recur.