Volume Two: Understanding Skin Conditions
Chapter Two

 

Pigmentation Explained: Understanding Melasma, Sun Damage & Post-Inflammatory Pigmentation

“Successful pigmentation treatment begins by understanding why the pigment formed—not simply trying to remove it.”

Pigmentation is one of the most common reasons people seek professional skin advice.

Whether it’s freckles that have darkened over time, lingering acne marks or patches of melasma, unwanted pigmentation can affect confidence and often proves frustrating to treat.

One of the biggest misconceptions is that all pigmentation is the same.
It isn’t.

Different types of pigmentation develop for different reasons, which means successful treatment always begins with identifying the underlying cause.

At The Skin Code, we believe understanding your pigmentation is just as important as treating it.

What Is Pigmentation?

Pigmentation occurs when specialised skin cells called melanocytes produce melanin.
Melanin is your skin’s natural pigment and plays an essential role in protecting the skin from ultraviolet (UV) damage.

When melanocytes become overactive, excess pigment is produced.

This can appear as:

• Brown patches
• Freckles
• Dark marks
• Uneven skin tone

The Three Most Common Types of Pigmentation

1. Melasma

Often appears as:

• Symmetrical brown patches
• Cheeks
• Forehead
• Upper lip
• Chin

Common triggers include:

• Hormones
• Pregnancy
• Oral contraceptives
• Heat
• UV exposure

Melasma is a chronic condition that requires long-term management rather than a permanent cure.

2. Sun Damage (Solar Lentigines)

Often called “sun spots” or “age spots.” Develops after years of UV exposure.

Usually appears as:

• Individual brown spots
• Face
• Hands
• Chest
• Shoulders

Unlike melasma, sun spots often respond very well to professional treatments.

3. Post-Inflammatory Hyperpigmentation (PIH). 

Develops after inflammation.

Common causes include:

• Acne
• Picking the skin
• Burns
• Rashes
• Cosmetic procedures 

The inflammation stimulates melanocytes to produce extra pigment during healing.

Why Does Pigmentation Return?

One reason pigmentation can be difficult to manage is that the cells responsible for producing pigment remain within the skin.

Even after pigmentation fades, UV exposure, hormones or inflammation can reactivate melanocytes.

This is why prevention is just as important as correction.

Common Pigmentation Triggers

• UV exposure
• Hormonal fluctuations
• Pregnancy
• Heat
• Inflammation
• Certain medications
• Genetics

Can Skincare Help?

Yes—but realistic expectations are important.

Professional skincare can help regulate pigment production and gradually brighten the complexion.

Common ingredients include:

• Vitamin C
• Niacinamide
• Retinoids (Vitamin A)
• Azelaic Acid
• Tranexamic Acid
• Cysteamine
• Selected exfoliating acids

The best ingredient depends on the type of pigmentation being treated.

Professional Treatments

Depending on the diagnosis, your clinician/therapist may recommend:

• Professional chemical peels
• LED Light Therapy (to reduce inflammation)
• Microneedling (for selected cases)
• Prescription therapies
• Pigment-specific laser (when appropriate)

Treatment always depends on the type of pigmentation, skin type and individual risk factors.

Sunscreen Is Essential

No pigmentation treatment is complete without daily sun protection.
UV exposure continues to stimulate melanin production—even on cloudy days.
Daily broad-spectrum SPF remains one of the most effective ways to prevent pigmentation from worsening or returning.

Professional Guidance Matters

Treating pigmentation without understanding its cause often leads to disappointment.
Some treatments that work well for sun damage may worsen melasma.

Professional assessment ensures your treatment plan matches the biology of your skin—not simply what the pigmentation looks like.

 

Frequently Asked Questions

Will pigmentation disappear completely?

Some pigmentation fades significantly.
Other types, particularly melasma, require long-term management for life in a lot of skin cases.

Is melasma caused by the sun?

Not entirely.
Melasma is influenced by hormones, genetics, heat and UV exposure.

Can I treat pigmentation at home?

Many cases improve with appropriate skincare.
More persistent pigmentation usually benefits from professional guidance.

How long does pigmentation treatment take?

Visible improvement often takes several months. Pigmentation develops gradually and usually fades gradually. Consistency is essential.

Continue Your Skin Journey

Understanding pigmentation is only one part of healthy skin.

Many people experiencing redness, flushing and irritation mistake these symptoms for pigmentation when the underlying condition is actually something different.

Next Chapter: Rosacea — Why Your Skin Flushes, Burns & Reacts

Discover what causes rosacea, why it often worsens over time without appropriate care, and how to calm inflammation while protecting your skin barrier.

Or, if you’re concerned about uneven skin tone or persistent pigmentation, Book a Skin Consultation at The Skin Code and let our experienced skin therapists create a personalised treatment plan tailored to your skin, lifestyle and long-term goals.