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 Conditions & Pigmentation

Is Hyperpigmentation the Same as Melasma?

Both hyperpigmentation and melasma involve darkened skin, but they're not the same thing. Melasma is a specific type of hyperpigmentation with its own triggers, patterns, and treatment challenges.

Quick answerNo, melasma is not the same as hyperpigmentation - it's a specific type of hyperpigmentation with distinct characteristics.

Medically reviewed by Dermatology reviewer · Updated Jul 18, 2026 · 5 min read

Comparison of hyperpigmentation and melasma patterns on face
HyperpigmentationBroad term for any excess pigment
MelasmaSpecific type of hyperpigmentation
Key DifferenceCause and pattern
Melasma TriggersHormones, sun, genetics
Evidence LevelStrong

Key answer

No

Melasma is a specific, hormonal type of hyperpigmentation. All melasma is hyperpigmentation, but not all hyperpigmentation is melasma.

Evidence
Strong - No - melasma is a specific type
Best for
Understanding pigmentation types
Limitation
None - this is foundational knowledge

See what the evidence shows

Short version

Story in brief

Melasma is a specific form of hyperpigmentation that typically appears on the face - most commonly on the cheeks, forehead, bridge of the nose, and upper lip. The patches are symmetrical and often have a distinct border.

The condition is driven by hormones: estrogen and progesterone can trigger melanocytes to produce excess melanin. This is why melasma is more common in women, especially during pregnancy, with oral contraceptives, or with hormone therapy. Sun exposure is a major aggravating factor.

What makes melasma different from other hyperpigmentation is its hormonal component and its stubbornness. It often requires a combination of treatments and ongoing maintenance, and it's prone to recurrence.

Mental model

Visual explanation

Evidence

What the evidence shows

Melasma is a condition, not just a symptom. It's driven by hormonal factors and melanocyte hyperactivity that general hyperpigmentation treatments often can't fully address.

  • Is the pigmentation symmetrical on your face?

    Symmetrical patches suggest melasma.

  • Did it appear during or after pregnancy?

    Hormonal changes are a classic melasma trigger.

  • Is it on your cheeks, forehead, nose, or upper lip?

    These are the classic melasma locations.

  • Did it appear after a breakout or sunburn?

    This suggests PIH or sun damage, not melasma.

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

    HyperpigmentationUse caution
    Fit signal
    Limited evidence

    Broad term, many causes

  • If your goal is

    MelasmaDepends
    Fit signal
    Possible fit

    Specific type, hormonal

  • If your goal is

    PatternUse caution
    Fit signal
    Limited evidence

    Symmetrical facial patches

  • If your goal is

    TreatmentDepends
    Fit signal
    Possible fit

    More challenging

  • If your goal is

    Key InsightUsually relevant
    Fit signal
    Often useful

    Not interchangeable

Practical use

How to use it

  1. Get a proper diagnosis

    Consult a dermatologist to confirm whether you have melasma or another type of hyperpigmentation.

  2. Use sunscreen religiously

    Melasma is highly sun-sensitive - SPF 30+ daily, reapply often.

  3. Consider combination treatment

    Melasma often responds best to a combination of topical treatments and professional procedures.

Safety

Side effects and cautions

  • Treating melasma like ordinary sun spots

    Melasma needs specific treatments and careful sun protection.

  • Using aggressive treatments on melasma

    Aggressive treatments can cause rebound pigmentation in melasma.

  • Thinking melasma is just a cosmetic issue

    While harmless, melasma can be emotionally distressing and requires proper management.

Fit

Who should be careful

  • None - this is foundational knowledge

Worth noting

Small details that can change the answer

  • Melasma Pattern. Melasma appears symmetrically on the face (cheeks, forehead, nose, upper lip).
  • Hormonal Trigger. Estrogen and progesterone stimulate melanocyte activity in melasma.
  • Gender Factor. Melasma is 10 times more common in women than men.
  • Treatment Challenge. Melasma is more stubborn and prone to recurrence than other pigmentation.

Melasma is a specific type of hyperpigmentation, not the same as general hyperpigmentation.

It's driven by hormones (estrogen, progesterone) and sun exposure.

It appears as symmetrical patches on the face.

It's more common in women and is notoriously stubborn.

Melasma requires specific treatments and religious sun protection.

Definition

What is melasma?

Melasma is a specific form of hyperpigmentation characterized by symmetrical, brown or gray-brown patches on sun-exposed areas of the face. It's driven by hormonal factors and sun exposure and is much more common in women.

  • Symmetrical facial patches
  • Hormonal triggers (estrogen, progesterone)
  • Sun exposure aggravates it
  • More common in women (10:1 ratio)

Definition

What is general hyperpigmentation?

General hyperpigmentation is any excess melanin production in the skin. It can be localized (dark spots) or diffuse, triggered by sun exposure, inflammation, injury, or other factors. It's not typically driven by hormones.

  • Triggered by sun, inflammation, or injury
  • Not typically hormonal
  • Can appear anywhere on the body
  • Usually easier to treat than melasma

Key differences at a glance

Factor

Risks

Why melasma is harder to treat

Melasma's hormonal component makes it particularly challenging.

  • Hormonal triggers are harder to control than environmental ones
  • Melanocytes in melasma are hyperactive and more responsive to hormones
  • Sun exposure can quickly reverse treatment progress
  • Some treatments can trigger rebound pigmentation in melasma-prone skin

Questions

Frequently asked questions

Can men get melasma?

Yes, though it's much less common - about 10% of melasma cases are in men.

Is melasma more common in certain skin types?

It's more common in people with darker skin (Fitzpatrick skin types III-V).

Will melasma go away after pregnancy?

It may fade, but it often persists or returns with future hormonal changes or sun exposure.

Can melasma be cured?

It can be managed and improved, but it's often a chronic condition requiring ongoing maintenance.