The first question in pigmentation is not which laser. It is how deep the pigment sits. Epidermal pigment such as sun spots, freckling and seborrhoeic keratoses responds quickly and predictably. Dermal pigment sits below the basement membrane, clears slowly, and needs a different pulse entirely. Treating one as though it were the other is the most common reason a pigmentation programme disappoints.
Matching the technology to the pigment
- Q-switched Nd:YAG fires nanosecond pulses. The pulse is shorter than the time the pigment particle needs to shed heat, so the particle fragments rather than cooks. 1064nm reaches dermal pigment; 532nm handles superficial pigment and red-brown lesions. On Alma Harmony this is the ClearLift Pro applicator.
- Narrow-band IPL covers area. Where a patient has diffuse sun damage across both cheeks rather than four discrete lesions, an applicator like Iris Dye-SR treats the field in minutes. Restricting the spectrum to the wavelengths melanin actually absorbs is what makes it safer than broadband IPL on darker skin.
- Ablative resurfacing removes pigment with the tissue it sits in. When pigmentation arrives alongside texture, fine lines and photodamage, a fractional CO2 pass on Alma Pixel CO2 or Alma Hybrid corrects all of it at once rather than in sequence.
Melasma is not a pigmented lesion, and treating it like one makes it worse
This is worth being blunt about, because it is where clinics get into trouble. Melasma is a chronic, relapsing condition driven by hormones, heat and ultraviolet exposure, not a discrete deposit of pigment you can remove. The melanocytes are overactive, not simply overloaded. Aggressive laser settings that would clear a sun spot in one pass will provoke melasma, and rebound hyperpigmentation weeks later is a common outcome.
What works better is restraint. Low-fluence Q-switched approaches, spaced sessions, and an honest conversation before the first treatment: melasma is managed rather than cured, maintenance is part of the plan, and daily broad-spectrum sun protection does more for the result than any device. Heat itself is a trigger, which is why IPL and aggressive resurfacing are poor first choices here. Clinics that set that expectation up front keep melasma patients for years. Clinics that promise clearance lose them after two sessions.
Skin type is the safety boundary
On Fitzpatrick IV to VI the epidermis competes for every pulse you deliver, and post-inflammatory hyperpigmentation is the failure mode rather than burns. Longer wavelengths, narrower spectra, lower fluences and longer intervals all reduce that risk. Patch test, review at 24 to 48 hours, and photograph under controlled lighting so you can tell improvement from wishful thinking. A skin analysis system such as Alma IQ makes that comparison objective rather than a matter of memory.
What to compare before you buy
Ask which wavelengths are genuinely available and at which pulse durations, whether the system can do both discrete lesions and full-field work, and what it offers for darker skin specifically rather than as an afterthought. Then ask who supports it locally. Alma Lasers Australia is Alma’s own Australian subsidiary, covering New Zealand from Sydney, so clinical training, protocol support and service come from the same team. We do not publish list prices; bring your treatment prices and weekly bookings to a demo and we will build the numbers with you. Equipment finance is available through Medfin.