Hyperpigmentation and Age Spots: Which Laser Treatments Actually Work

Pigmentation is the concern where getting the treatment wrong does not simply fail. It can make the problem worse, sometimes considerably, and sometimes for a long time.

That is not a reason to avoid treating it. It is a reason to find out what kind of pigmentation you have before anything is pointed at your face, because the word covers several different conditions that respond to completely different things.

Here is what causes pigmentation, why the type matters more than the treatment, and what genuinely works for each.

Why Pigmentation Happens

Skin colour comes from melanin, produced by cells called melanocytes. Hyperpigmentation is what happens when those cells produce more melanin in some areas than others, or when melanin ends up deposited where it should not be.

Four things drive it, often in combination:

• Ultraviolet exposure, by far the biggest contributor, and cumulative over decades rather than caused by any one summer.
• Hormonal change, including pregnancy and the perimenopausal years.
• Inflammation, where skin darkens after acne, injury, or an aggressive treatment.
• Age, as melanocyte activity becomes less evenly distributed over time.

The Types Behave Very Differently

Sun spots and age spots. Also called solar lentigines. Flat, well-defined brown patches on sun-exposed areas, typically the face, chest, shoulders and backs of the hands. These are the most straightforward to treat and respond well to targeted light and laser treatment.

Post-inflammatory hyperpigmentation. Darkening left behind after acne, a scratch, a burn or a procedure. It usually fades on its own, though slowly, and it is more persistent and more likely in deeper skin tones.

Melasma. Larger, symmetrical, blotchy patches, usually across the cheeks, forehead and upper lip. Hormonally driven and worsened by heat and light. This one is different from everything else on the list, and it is where most of the damage gets done.

Why Melasma Needs Treating Differently

Melasma is heat sensitive as well as light sensitive. Many of the treatments that clear sun spots effectively deliver heat into the skin, and in melasma that heat can stimulate the very process you are trying to calm.

The result is a rebound, where pigmentation lifts briefly and then returns darker than it started. This is common, it is well documented, and it is the single most frequent reason people arrive at a consultant-led clinic having already spent money elsewhere.

Melasma is also managed rather than cured. It is a chronic condition that fluctuates with hormones, sunlight and season. A realistic plan involves gradual improvement and ongoing maintenance, not a course of treatment that ends with the problem gone. Anybody promising otherwise is not being straight with you.

Skin Type Changes What Is Safe

This is not a formality and it is not about what suits you aesthetically.

Deeper skin tones contain more active melanin, which means light-based treatments carry a higher risk of two specific complications: post-inflammatory hyperpigmentation, where the treated area darkens, and hypopigmentation, where it lightens permanently. Settings, wavelength and the choice of device all have to account for this, and some treatments are simply not appropriate for some skin types.

Any clinic that assesses your skin type properly before recommending treatment is doing the basic job. Any clinic that does not should be avoided for pigmentation specifically, whatever else they are good at.

What Works for What

For sun spots and age spots, targeted laser and light treatment is effective and often works quickly. The energy is absorbed by the pigment, which breaks down and clears over the following weeks. Our page on laser pigmentation removal covers how the treatment itself works.

For widespread sun damage rather than individual spots, treatment is usually about resurfacing and evening overall tone rather than targeting discrete marks. That overlaps with sun damaged skin treatment, which addresses texture and tone together.

For melasma, the approach is conservative and layered: rigorous sun protection, appropriate topical treatment, and energy-based treatment only where it is suitable and at settings chosen with the condition in mind. Progress is measured over months.

For post-inflammatory pigmentation, patience often does most of the work, supported by sun protection and treatment of whatever caused the inflammation in the first place.

Sun Protection Is Not Optional Afterwards

This is the part people skip, and it undoes everything else.

Pigment cells that have been treated remain capable of producing pigment. Ultraviolet exposure after treatment reactivates them, and in many cases the pigmentation returns within a season. Daily broad-spectrum SPF is the difference between a result that holds and a course of treatment you pay for twice.

This applies in Wales in February as well as in July. Ultraviolet A passes through cloud and glass.

When Pigmentation Needs a Medical Opinion First

Not every brown mark is an age spot, and this distinction matters more than anything else in this article.

A pigmented patch that is changing in size, shape or colour, that has an irregular border, that itches or bleeds, or that looks noticeably different from the others on your skin, needs assessing medically before any cosmetic treatment is considered. Treating a lesion that should have been examined is a serious error, and it is one of the reasons assessment by a clinician with a surgical background matters here.

If something on your skin has changed, speak to your GP or arrange an assessment first.

Frequently Asked Questions

How many sessions will I need? Sun spots often respond in one to three sessions. Melasma is managed over months rather than cleared in a set number. Your estimate comes from assessment, not from a price list.

Will it come back? Sun spots can return with further ultraviolet exposure. Melasma fluctuates by its nature. Sun protection is what determines how long a result lasts.

Can I treat pigmentation at home? Daily SPF genuinely helps and is worth doing regardless. Over-the-counter products marketed for pigmentation have limited effect on established pigment, and some aggressive regimes cause inflammation that makes things worse.

Is laser safe for darker skin tones? It depends on the treatment, the device and the settings. Some options are appropriate and some are not, which is exactly what the assessment determines.

Can I have treatment in summer? Timing is discussed at consultation. Recent sun exposure and planned holidays both affect whether treatment should go ahead and when.

Assessment in Swansea or Penarth

Because the right treatment depends entirely on which type of pigmentation you have and what your skin will safely tolerate, this is a concern where assessment does real work rather than being a formality before booking.

AMAR Aesthetics runs consultant-led clinics in Swansea and Penarth. Get in touch to arrange a consultation and find out which approach suits your skin.