You noticed it in the mirror one morning.

A patch of darker skin across your cheeks. Perhaps a shadow along your forehead, or a darkening above your upper lip that wasn't there before.

You haven't spent extra time in the sun. You haven't changed anything.

You're just pregnant.

What you're looking at has a name: melasma.

Known colloquially as the mask of pregnancy, it's one of the most common and least anticipated skin changes of pregnancy.

And while it is completely harmless from a medical perspective, the emotional experience of watching your face change in unexpected ways is something that many women find genuinely distressing.

In more than thirty years of specialist obstetric practice, I have had this conversation hundreds of times.

Women who noticed the darkening at twelve weeks and felt worried.
Women who reached the second trimester and watched it deepen despite everything they were doing.

Women who simply wished someone had warned them and told them clearly what they could and couldn't safely do about it.

This article is that conversation.

Evidence-informed, pregnancy-safe, and honest about what works, what doesn't, and what to avoid.

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What Is Pregnancy Melasma?

Melasma is a form of hyperpigmentation, an overproduction of melanin, the pigment that gives skin its colour, that results in flat, irregular patches of tan, brown, or greyish skin.

During pregnancy, it most commonly appears across the:

• cheeks
• forehead
• bridge of the nose
• upper lip
• chin

It is not a rash.

It is not an infection.

It doesn't itch or hurt.

It is simply an area of skin where the melanocytes, the cells responsible for producing melanin, have become more active than usual.

The name "mask of pregnancy" is apt: the patches often form a symmetrical pattern across the face that can resemble a mask.

It typically appears during the second or third trimester, when hormone levels are at their peak.

Melasma is also known by an older term: chloasma.

The two words refer to the same condition.

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What Causes Pregnancy Melasma?

The primary cause is hormonal.

During pregnancy, levels of:

• oestrogen
• progesterone
• melanocyte-stimulating hormone (MSH)
  

all rise substantially.

These hormones directly stimulate the skin's melanocytes to produce more melanin.

The result is hyperpigmentation in areas where the skin is most exposed to stimulation, particularly the sun-facing planes of the face.

Melasma affects 50 to 70 per cent of pregnant women, making it one of the most common skin changes of pregnancy.

That means if you're sitting in a room with five other pregnant women, three or four of you are likely experiencing some degree of it.

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Risk Factors for Pregnancy Melasma

Several factors increase the risk:

Sun Exposure

UV radiation is the most significant aggravating factor.

Even brief incidental sun exposure can trigger or deepen melasma during pregnancy.

Skin Tone

Women with medium to deeper skin tones (Fitzpatrick types III through VI) are more prone to melasma and may experience more pronounced pigmentation.

Family History

If your mother or sister developed melasma during pregnancy, your risk is higher.

Pregnancy Stage

Melasma most often begins to appear between the fourth and sixth month of pregnancy, as hormone levels peak.

In Australia specifically, the combination of one of the world's highest UV radiation levels and a multicultural population with a high proportion of Fitzpatrick III to VI skin types means pregnancy melasma is both more common and more pronounced here than in many other parts of the world.

Daily sun protection is not a minor footnote in managing this condition.In Australia specifically, the combination of one of the world's highest UV radiation levels and a multicultural population with a high proportion of Fitzpatrick III to VI skin types means pregnancy melasma is both more common and more pronounced here than in many other parts of the world.

Daily sun protection is not a minor footnote in managing this condition.

It is the central intervention.

The Most Important Step: Daily Mineral SPF 50+

Before we discuss any active skincare ingredient, we need to talk about sunscreen.

Because without consistent, daily sun protection, every other step in your melasma management routine is fighting an uphill battle it cannot win.

Daily mineral SPF is the single most important step in a pregnancy skincare routine, particularly for managing melasma.

UV exposure directly triggers and worsens hormonal pigmentation.

Without consistent sun protection, every brightening step is undermined.

During pregnancy, mineral sunscreens, those containing zinc oxide and/or titanium dioxide as their active ingredients, are strongly preferred over chemical sunscreens.

Unlike chemical filters such as oxybenzone and octinoxate, which are absorbed through the skin and have been associated with endocrine disruption, zinc oxide and titanium dioxide sit on the surface of the skin and physically block UV rays without systemic absorption.

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What to Look for in Pregnancy Sunscreen

Choose:

 ✓ Active ingredients: zinc oxide and/or titanium dioxide only

✓ Broad-spectrum protection covering UVA and UVB

✓ SPF 50+, the highest standard available

✓ Tinted formula, iron oxides in tinted sunscreens provide additional protection against visible light, which can also stimulate melanin production independently of UV

Apply every morning, including:

• overcast days
• winter days 
• days you plan to stay in-doors

UVA rays penetrate glass.

Reapply every two hours when outdoors.

Pair with a wide-brimmed hat whenever you're outside.

No skincare ingredient, no matter how effective, can compensate for unprotected sun exposure in someone whose melanocytes are hormonally primed to respond.

Pregnancy-Safe Active Ingredients for Melasma

With daily mineral SPF as the non-negotiable foundation, there are several evidence-informed active ingredients that are considered safe throughout pregnancy and can meaningfully support melasma management.

Vitamin C: The Most Valuable Pregnancy-Safe Brightening Active

Vitamin C is the most well-evidenced, widely recommended, pregnancy-safe ingredient for addressing hyperpigmentation.

It works by inhibiting tyrosinase, the enzyme responsible for converting tyrosine into melanin.

By reducing tyrosinase activity, Vitamin C slows the rate of melanin production, supporting a more even skin tone over time.

It also functions as a potent antioxidant, neutralising the free radicals generated by UV radiation that stimulate further melanin production.

This means Vitamin C is doing two things simultaneously:

• Reducing the production signal through tyrosinase inhibition
• Reducing the trigger through antioxidant UV defence

Melasma affects 50 to 70 per cent of pregnant women, with hormones triggering melanin production.

Vitamin C inhibits tyrosinase, making it one of the safest melasma-supporting skincare ingredients available during pregnancy.

Starting Vitamin C in the first trimester for prevention is easier than treating established melasma and may reduce its severity throughout pregnancy.

Why Kakadu Plum Is Especially Valuable During Pregnancy

For pregnancy, natural Vitamin C sources, including Kakadu Plum (Terminalia ferdinandiana), the world's richest natural source of Vitamin C, are particularly well suited.

Kakadu Plum extract delivers Vitamin C in a naturally buffered, whole-fruit botanical matrix alongside ellagic acid, a polyphenol that inhibits melanin production through a separate pathway.

This dual-mechanism approach makes it especially relevant for pregnancy melasma.

Our Kakadu Plum Belly Oil incorporates Kakadu Plum as its hero ingredient.

While it is formulated for body use, the science of this extraordinary Australian ingredient is the foundation of our broader skincare philosophy for pregnancy and postpartum.

Niacinamide: Barrier, Tone and Melanin Transfer

Niacinamide (Vitamin B3) supports even skin tone through a mechanism distinct from Vitamin C.

It inhibits the transfer of melanin from melanocytes to keratinocytes.

This means it reduces how much of the pigment that is produced actually reaches the surface of the skin.

It also strengthens the skin barrier and reduces redness and sensitivity, which is particularly valuable during pregnancy when skin often becomes more reactive.

The three key pregnancy-safe ingredients that help support melasma-prone skin are:

• Vitamin C
• Niacinamide
  
• Azelaic acid

Niacinamide is safe throughout pregnancy and breastfeeding and pairs extremely well with Vitamin C in a morning skincare routine.

Azelaic Acid: The Pregnancy Dermatologist's Go-To

Azelaic acid is perhaps the most underappreciated pregnancy-safe active available.

It is classified as pregnancy category B, considered safe for use during pregnancy and breastfeeding, and has documented efficacy for both melasma and acne.

It lightens pigmentation by inhibiting tyrosinase activity and reducing the production of abnormal melanocytes.

Azelaic acid is commonly recommended for pregnant women because it addresses two common pregnancy skin concerns:

• pigmentation 
• acne 

Available over the counter at lower concentrations and by prescription at higher concentrations, azelaic acid is best applied in the evening after cleansing.

If you are using both:

Morning:
Vitamin C

Evening:
Azelaic acid

you are supporting both the production and transfer pathways involved in melanin formation from morning to night.

What to Avoid for Pregnancy Melasma

Several commonly used melasma treatments are not safe during pregnancy.

It is important to understand that many ingredients used successfully outside pregnancy are not appropriate while pregnant or breastfeeding.

Hydroquinone

Hydroquinone is one of the most common conventional treatments for melasma.

However, it is not recommended during pregnancy due to its high rate of systemic skin absorption, estimated at up to 45 per cent.

Pregnancy is a time when safer alternatives should be prioritised.

Retinoids

Retinoids are highly effective for pigmentation treatment after pregnancy, but they are not safe during pregnancy in any form.

This includes:

• tretinoin
• retinol
• retinyl palmitate
• adapalene 
  

These ingredients should be avoided throughout pregnancy.

High-Dose Chemical Peels

Professional-strength chemical peels, including stronger kojic acid and glycolic acid treatments, should generally be deferred until after pregnancy and breastfeeding.

Chemical Sunscreen Actives

Certain chemical sunscreen filters are generally avoided by many women during pregnancy, including:

• oxybenzone 
• octinoxate 
• homosalate 

Mineral sunscreens containing zinc oxide and titanium dioxide are preferred during pregnancy.

The reassuring truth is that the pregnancy-safe options listed above:

• Vitamin C
• Niacinamide
• Azelaic acid
• Consistent mineral SPF

are not inferior substitutes.

They are genuinely effective, evidence-supported interventions.

For many women, this combination is sufficient to prevent melasma from deepening significantly, even if it does not resolve it entirely during pregnancy.

What to Expect: Will Pregnancy Melasma Go Away?

For most women, yes.

Almost all melasma spots fade significantly after pregnancy as hormone levels return toward their pre-pregnancy state.

It is important to keep skin protected from sun damage during and after pregnancy to reduce ongoing pigmentation.

However, continued sun exposure without protection after birth, or the use of hormonal contraceptives, can slow or reverse that fading.

Some women, particularly those with darker skin tones or a genetic predisposition, may find melasma more persistent.

If melasma remains after you have stopped breastfeeding, the full spectrum of dermatological treatments becomes available.

These may include:

• topical retinoids
• professional-strength azelaic acid
• chemical peels
• other dermatologist-guided treatments 

This is an excellent conversation to have with a dermatologist postpartum if you are concerned about ongoing pigmentation.

Your Pregnancy Melasma Routine: A Practical Summary

A simple, consistent routine is usually more effective than using too many products.

Morning Routine

Step 1

Gentle fragrance-free cleanser.

A mild cleanser supports the skin barrier without stripping sensitive pregnancy skin.

Step 2

Vitamin C serum or a Kakadu Plum-rich formulation on clean skin.

Supports:

• brighter skin
• antioxidant protection
• collagen health
• more even-looking skin tone 

Step 3

Niacinamide moisturiser.

Supports:

• skin barrier function
• hydration 
• reduced sensitivity
• improved appearance of uneven tone

Step 4

Broad-spectrum mineral SPF 50+
Every single day.
This is the most important step.

Evening Routine

Step 1

Gentle cleanser.
Remove:

• sunscreen
• environmental pollutants
• daily impurities 
  

Step 2

Azelaic acid serum (if using).
Supports pigmentation management and pregnancy-related breakouts.

Step 3

Hydrating, barrier-supportive moisturiser.
Helps maintain comfortable, healthy pregnancy skin.

Sun Protection Habits

Because Australian UV exposure is significant, daily habits matter.

Remember:

• Wear a wide-brimmed hat outdoors
• Seek shade between 10am and 3pm when UV is highest
• Reapply SPF every two hours during outdoor activity
• Apply SPF even on indoor days, because UVA penetrates glass

Frequently Asked Questions

Is melasma during pregnancy dangerous?

No.

Pregnancy melasma is purely a cosmetic concern.

It does not affect the health of you or your baby in any way.

However, it can be a source of genuine emotional distress for many women, and you are entirely entitled to address it.

When does pregnancy melasma usually appear?

Most commonly between the fourth and sixth month of pregnancy, during the second trimester when hormone levels peak.

It can appear earlier or later in some women.

Can I use Vitamin C during pregnancy?

Yes.

Vitamin C is considered safe throughout pregnancy and breastfeeding and is one of the most valuable pregnancy-safe ingredients for supporting skin affected by melasma.

Natural sources such as Kakadu Plum extract are particularly gentle and suitable for sensitive pregnancy skin.

Will my melasma go away after birth?

For most women, melasma fades significantly after birth.

Continued sun protection during the postpartum period and breastfeeding phase is essential to support that fading.

Can I use hydroquinone for pregnancy melasma?

No.

Hydroquinone is not recommended during pregnancy due to its high rate of systemic skin absorption.

Vitamin C, niacinamide, azelaic acid and mineral SPF are preferred pregnancy-safe alternatives.

A Reassuring Note to Close

Your face may look different during pregnancy.

That is real, and your feelings about it are valid.

But pregnancy melasma is one of the most common and most manageable skin changes of this season.

With a consistent, evidence-informed approach, most women find it fades significantly in the months after birth.

Start daily mineral SPF now if you haven't already.

Add pregnancy-safe Vitamin C and niacinamide to your morning routine.

Ask your GP or dermatologist about azelaic acid if your melasma is more pronounced.

And know that the women in your care at Pregnancy and Baby Co. have thought carefully about this, from the consulting room and the nursery both.

Your skin is doing something extraordinary.

Let's support it well.

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Related Reading

The Benefits of Australian Kakadu Plum Extract in Skincare
Pregnancy-Safe Skincare: What to Use and What to Avoid
Stretch Marks During Pregnancy: What the Evidence Says

Medical Disclaimer

This article is for general informational purposes only and does not constitute medical advice.

Skincare needs vary between individuals and pregnancies.

Always consult your GP, midwife, or obstetrician for advice specific to your circumstances, particularly if you have an existing skin condition or medical concern.

© 2025 Pregnancy and Baby Co. Pty Ltd
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