Sun Spots vs PIH vs Melasma: What’s the Difference and How to Treat Each Type of Pigmentation

When it comes to skin discoloration, most people immediately think of sun damage. While UV exposure is a major cause of pigmentation, it is far from the only one.

Dark spots can be triggered by multiple internal and external factors, and treating them correctly starts with understanding what type of pigment you actually have.

Not all pigmentation is the same—and using the wrong treatment can lead to little improvement or, in some cases, worsening of the condition.

Let’s break down the three most common types of pigmentation: sun spots, post-inflammatory hyperpigmentation (PIH), and melasma.

Sun Spots (Solar Lentigines)

Sun spots, also known as solar lentigines, develop from cumulative sun exposure over time. Even with daily SPF use, years of UV exposure from driving, outdoor activity, and incidental sun can lead to visible pigmentation—especially in areas like the face, chest, and hands.

These spots are typically:

• Flat and brown

• Well-defined

• Found on sun-exposed areas

  
  

Best treatments for sun spots:

• IPL Photofacial (Lumenis M22): Targets melanin and breaks down pigment for natural clearance

• Laser resurfacing (such as Fraxel): Improves overall brightness and skin texture

• Medical-grade skincare: Vitamin C, retinoids, and pigment inhibitors to maintain results

• Daily SPF: Essential to prevent new pigment formation

Sun spots tend to respond well to treatment, but without consistent sun protection, they can easily return.

Post-Inflammatory Hyperpigmentation (PIH)

Post-inflammatory hyperpigmentation (PIH) occurs after the skin experiences inflammation or injury.

Common triggers include:

• Acne breakouts

• Bug bites

• Skin picking or trauma

• Minor irritation or inflammation

When the skin heals, it produces excess melanin in response, leaving behind dark marks.

PIH can appear as:

• Brown, tan, or sometimes reddish marks

• Irregular spots following inflammation

• Areas that slowly fade over time without treatment

Best treatments for PIH:

• Chemical peels: Help accelerate cell turnover and fade pigment

• Microneedling: Stimulates collagen and helps even skin tone

• Targeted skincare: Ingredients like niacinamide, azelaic acid, and tranexamic acid

The most important step in treating PIH is addressing the root cause of inflammation, or new pigmentation will continue to form.

Melasma

Melasma is a chronic pigmentation condition that is more complex than sun spots or PIH. It is often triggered by a combination of:

• Hormones

• Heat exposure

• Sun exposure

• Stress

It typically presents as:

• Symmetrical patches

• Brown or gray-brown discoloration

• Common areas: cheeks, forehead, upper lip

Melasma is often referred to as the “pregnancy mask,” but it can affect anyone.

Important note:

Melasma is highly reactive. Heat-based or overly aggressive treatments can sometimes make it worse or trigger rebound pigmentation.

Best treatments for melasma:

• Medical-grade brightening skincare: Pigment-regulating ingredients such as tranexamic acid-based systems (e.g., brightening kits)

• Carefully selected peels and microneedling: Used conservatively and strategically

• Strict sun protection: Essential year-round, even minimal UV or heat exposure can trigger flare-ups

Melasma is best managed long-term rather than “cured,” focusing on stability and prevention.

Why an Accurate Diagnosis Matters

Pigmentation is not one-size-fits-all.

If melasma is treated like sun spots, it can worsen.If PIH is treated like melasma, results may be slow or ineffective.

This is why proper diagnosis is essential before starting any pigmentation treatment plan.

At Simply Beautiful, every pigmentation plan begins with a detailed skin analysis through our Curated Clinical Approach. This allows us to identify the exact type of pigment and select the safest, most effective combination of treatments.

Our Clinical Approach to Pigmentation

At Simply Beautiful, pigmentation is treated using a combination of:

• IPL Photofacials (Lumenis M22)

• Advanced Clinical Facials

• Chemical peels

• Microneedling

• Medical-grade skincare protocols

Each treatment plan is fully customized based on skin type, pigment type, and long-term goals.

Final Thoughts

Not all dark spots come from the sun—and not all pigmentation should be treated the same way.

Understanding whether you are dealing with sun spots, PIH, or melasma is the key to achieving clear, even, and long-lasting results.

With the right diagnosis and a Curated Clinical Approach, pigmentation can be effectively managed and significantly improved over time.

Ready to treat pigmentation the right way?Book a consultation at Simply Beautiful to receive a personalized skin analysis and treatment plan.