SkincareSafety Guide

Skin

Understand your skin type, tone, and what your skin is doing.

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Start here

Skin typesThe main skin types and how they differ.Find your skin typeA practical identification guide.What different skin types look likeVisual differences between common skin types.

Common skin questions

Oily skinWhat oily skin means and how to read it.Skin type changesHow skin type can shift over time.Skin type and ageHow visible aging differs by skin type.
Not sure where to start?Use the skin-type guide before choosing routines or ingredients.

Concerns

Start from a skin problem or visible change.

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Oil and acne

Why oily skin happensThe main drivers behind excess oil.Oily skin and acneHow oil can contribute to breakouts.Can oily skin cause acne?A direct answer to the oil-acne link.

Changes and warning signs

Stress and oily skinHow stress may affect oiliness.Dehydration and oilinessWhy skin can feel oily and dehydrated.Skin cancer signsVisual signs that need professional attention.
Looking for a solution?Start with what oily skin actually needs before adding stronger products.

Ingredients

Understand what ingredients do and whether they fit your skin.

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Explore ingredients

NiacinamideA practical ingredient overview.Vitamin C serumWho can use vitamin C and when to be careful.RetinolHow retinol fits different skin types.

Use safely

Salicylic acidWhere this acne-focused ingredient fits.Niacinamide for all skin typesSuitability across skin types.Ingredient comparisonsUse comparisons to avoid mismatched decisions.
Can my skin use this?Browse compatibility questions before adding a new active.

Routines

Turn skin information into daily decisions.

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Daily basics

Does every skin type need moisturizer?A basic routine decision.Does every skin type need sunscreen?Where SPF fits in daily care.What oily skin needsA simple care direction for oily skin.

Adjust over time

Skin changes with ageWhen your routine may need to change.Seasonal skin changesHow weather affects skin behavior.Korean skincare approachWhat is useful beneath the trend.
Starting from scratch?Begin with moisturizer, sunscreen, and one skin-specific need.

Products

A small selection of skincare products recommended by OuterDerm for simple, effective everyday routines.

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Recommended picks

Daily SunscreenDaily UV protection that has to be wearable enough to stick with.Azelaic AcidA focused 10% azelaic acid when uneven tone or blemish marks are the concern.Gentle CleanserComfortable cleansing when tight or squeaky skin is a warning sign.
Not sure where to start?Browse three carefully selected essentials, then ask on WhatsApp before you order.

Learn

Go deeper into skin science, myths, evidence, and safety.

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Hazardous ingredients

Safety hubStart with mercury, steroids, PPD and other hazardous substances.Ingredient safety indexBrowse Phase 1 and Phase 2 hazardous ingredients.Mercury in whitening creamsLabel names, Punjab alerts, and what to do now.

Product literacy

Product literacy hubHow to read labels, claims, and INCI lists before you buy.How to read an ingredient labelINCI order, Parfum, and missing-list red flags.Fragrance-free vs unscentedHow to verify a fragrance-free claim on the ingredient list.How to choose sunscreenBroad spectrum, wearability, and a readable pack — not a fairness claim.

Skin science

Skin color geneticsHow inherited traits shape skin color.Skin color typesHow skin tone is commonly grouped.Are skin types genetic?What genetics can and cannot explain.

Evidence and myths

Can all skin types tan?Tanning, risk, and skin type.Is oily skin good or bad?A balanced view of oily skin.Why Korean skin looks flawlessTrend claims translated into practical basics.
Want the evidence layer?Use why-guides when you want causes, mechanisms, and context.

Skin Condition Identification

What Does Melasma Look Like? A Visual Guide to Recognizing Facial Pigmentation

Melasma has a distinct appearance that sets it apart from other types of pigmentation. Understanding what it looks like - and where it shows up - is the first step toward getting the right treatment and avoiding products that can make it worse.

Quick answerMelasma looks like brown, tan, or gray-brown patches of pigmentation, most commonly on the cheeks, forehead, bridge of the nose, and upper lip.

Medically reviewed by Dermatology reviewer · Updated Jul 20, 2026 · 7 min read

Woman with characteristic melasma patches on cheeks and forehead
AppearanceBrown or gray-brown patches
Common LocationsCheeks, forehead, upper lip, nose bridge
PatternUsually symmetrical on both sides of the face
EdgesIrregular, often blotchy rather than sharp
Skin TextureUsually normal, not raised or scaly

Key answer

Distinct visual patterns

Melasma has a distinctive appearance that's recognizable to dermatologists. If your pigmentation is bilateral, diffuse, and limited to sun-exposed areas, it's worth a professional consultation.

Evidence
Strong - Distinct visual patterns
Best for
Recognizing the bilateral, symmetrical pattern on sun-exposed areas; Distinguishing melasma from other pigmentation types
Limitation
Self-diagnosis - dermatologist confirmation is still needed

See what the evidence shows

Short version

Story in brief

Melasma has a look that dermatologists recognize instantly. The patches are typically uneven in shape and color, ranging from light brown to a darker gray-brown that can almost look like a shadow on the skin. The edges are irregular and diffuse rather than sharp and defined, blending into the surrounding skin in a way that makes it sometimes hard to see in certain lighting.

The location is as diagnostic as the appearance. Melasma almost always appears on sun-exposed areas of the face - the cheeks, forehead, bridge of the nose, and upper lip being the most common. It's often bilateral and symmetrical, meaning if it appears on one cheek, it will usually appear on the other in roughly the same pattern. This symmetry is one of the key things that distinguishes it from other forms of hyperpigmentation.

The skin itself doesn't change texture. There's no scaling, no thickening, no raised edges. The pigment is flat against the skin's surface, even though some of it may actually be located deeper in the dermis. This can make melasma deceptive - it looks superficial but is often anything but.

Mental model

Visual explanation

Evidence

What the evidence shows

Clinical examination by a dermatologist is the gold standard for diagnosis.

  • Visual inspection

    Primary diagnostic method

  • Wood's lamp

    Helps determine pigment depth

  • Dermatoscopy

    Confirms diagnosis

  • Self-diagnosis

    Unreliable - see a professional

Use this section to decide

Does this advice apply to me?

Find the concern or goal closest to yours, then use the fit signal to decide how much weight to give this guide.
Strong fit means the advice is central to that goal.Depends means formula, tolerance, or context matters more.Use caution means do not treat it as the main answer.

  • If your goal is

    ColorUse caution
    Fit signal
    Limited evidence

    Brown to gray-brown

  • If your goal is

    PatternUsually relevant
    Fit signal
    Often useful

    Symmetrical, bilateral

  • If your goal is

    EdgesUse caution
    Fit signal
    Limited evidence

    Irregular, diffuse

  • If your goal is

    Skin surfaceUse caution
    Fit signal
    Limited evidence

    Flat, normal texture

Research notes already in this guide

  • Clinical examination by visual inspection is the primary diagnostic method.
  • Wood's lamp examination can help determine the depth of pigment - epidermal pigment appears more distinct, dermal pigment is less visible.
  • Dermatoscopy provides a magnified view that helps distinguish melasma from other conditions.
  • Biopsy is rarely needed but can confirm the diagnosis in uncertain cases.

Explanation

How it works

The typical distribution pattern of melasma pigment.

  1. Cheeks

    The most common location - often the first place melasma appears.

  2. Forehead

    A band of pigmentation across the forehead is common.

  3. Bridge of nose

    Pigmentation extending from the cheeks across the nose bridge.

  4. Upper lip

    A subtle shadow-like patch above the lip is a classic sign.

Practical use

How to use it

  1. Take photos in natural light

    Photograph the pigmentation in consistent lighting to track changes over time.

  2. Look for the symmetry pattern

    Check if the pigmentation appears on both sides of your face in roughly the same location.

  3. Note changes with sun exposure

    Melasma typically darkens in summer. This seasonal variation is a clue.

  4. See a dermatologist for confirmation

    Visual self-diagnosis is unreliable. A professional can identify melasma and distinguish it from other conditions.

Safety

Side effects and cautions

  • Confusing melasma with freckles

    Freckles are small, distinct spots that often fade in winter. Melasma forms larger, diffuse patches that don't fully disappear seasonally.

  • Thinking melasma is just sun damage

    While sun exposure triggers melasma, hormonal factors are also involved. Sunspots typically appear later in life without the same bilateral pattern.

  • Assuming any facial pigmentation is melasma

    Other conditions like PIH, sunspots, and even certain medications can cause facial pigmentation. A dermatologist can make the distinction.

Fit

Who should be careful

  • Self-diagnosis - dermatologist confirmation is still needed

Helpful context

What else is worth knowing

For Your Situation

Does your pigmentation look like melasma?

This guide is educational, not diagnostic.

Bilateral patches on cheeks and forehead

This pattern is consistent with melasma. See a dermatologist for confirmation.

Single isolated spot on one cheek

This may be a sunspot or other pigmentation — less typical for melasma.

Freckle-like spots across the face

Freckles are smaller and less diffuse. Melasma tends to be more extensive.

Worth noting

Small details that can change the answer

  • The Symmetry Sign. Melasma is typically bilateral - if it's on one cheek, it's almost always on the other.
  • Color Range. Melasma can range from light tan to dark brown, and sometimes appears grayish.
  • No Texture Change. Unlike some skin conditions, melasma doesn't cause scaling, thickening, or raised areas.
  • Sunlight Effect. Melasma often darkens noticeably in summer and lightens somewhat in winter.

Melasma appears as brown to gray-brown patches with diffuse, irregular edges.

The pigmentation is typically symmetrical, appearing on both sides of the face.

Common locations are the cheeks, forehead, nose bridge, and upper lip.

The skin surface remains normal - no scaling, thickening, or raised areas.

Melasma is diagnosed clinically by appearance; a dermatologist can confirm the diagnosis.

Definition

The visual characteristics of melasma

Melasma is defined by a set of specific visual features that dermatologists use to identify it. Recognizing these features is important because melasma is often misdiagnosed as other forms of pigmentation, leading to ineffective or even harmful treatment.

  • Color: Brown to gray-brown, often with a blotchy, uneven appearance
  • Shape: Irregular patches with diffuse, ill-defined borders
  • Distribution: Symmetrical on both sides of the face
  • Location: Sun-exposed areas - cheeks, forehead, nose, upper lip
  • Surface: Flat, with no scaling, crusting, or textural change

Explanation

Why melasma looks the way it does

The appearance of melasma is tied to its biology. Melanocytes, the pigment-producing cells in the skin, become overactive in response to UV exposure, hormones, and sometimes heat. The melanin they produce is deposited in both the epidermis (the outer skin layer) and the dermis (the deeper layer). The depth of the pigment affects how it looks - epidermal melasma tends to be browner and more defined, while dermal melasma can appear more grayish and diffuse. The bilateral distribution reflects the pattern of sun exposure and hormonal influence across the face.

How melasma differs from other pigmentation

Factor

Questions

Frequently asked questions

How does melasma look on the face?

It looks like brown or gray-brown patches with irregular, diffuse edges. The patches are usually symmetrical on both cheeks, across the forehead, on the nose bridge, and above the upper lip.

What does melasma look like compared to other pigmentation?

Unlike freckles (small, distinct spots) or sunspots (well-defined patches), melasma appears as larger, diffuse patches with blurred edges. It's typically symmetrical and limited to sun-exposed areas.

Does melasma always look the same?

No. Melasma varies in color (tan to dark brown to gray-brown), depth, and distribution. It can also darken or lighten with sun exposure, hormones, and seasons.

Can melasma look like a shadow on the skin?

Yes, particularly when it appears above the upper lip or on the forehead. The gray-brown color can give it a shadow-like appearance that's sometimes mistaken for a natural shadow.

References

Sources

The notes below are drawn from the evidence already cited in this guide. They are not a complete bibliography.

  1. Clinical examination by visual inspection is the primary diagnostic method.
  2. Wood's lamp examination can help determine the depth of pigment - epidermal pigment appears more distinct, dermal pigment is less visible.
  3. Dermatoscopy provides a magnified view that helps distinguish melasma from other conditions.
  4. Biopsy is rarely needed but can confirm the diagnosis in uncertain cases.